<?xml version="1.0" encoding="utf-8"?>
<catalog>
	<question>
		<phrase isaudiomp3="1" mp3="AUDIO_REPOS/1.0.mp3"></phrase>
		<question isaudiomp3="1" rationale="0" picture="images/question1.jpg" mp3="AUDIO_REPOS/2061-00.mp3" exercise_type="" questionmode="" choicemode="" answerbankid="" answerbankmode="" rationalemode="" playonload="" mp3speed="" ttsspeed="" passage="1" show_passage="" show_passage_audioplayer="" passage_audio_type="" showvideo="" video="" enable_audio_recorder="" recorder_mode=""><![CDATA[LOS ANGELES - Scientists who study planets dream of sending a geologist to Mars to survey its rocks. Until then,]]></question>
		<saythis><![CDATA[LOS ANGELES     Scientists who study planets dream of sending a geologist to Mars to survey its rocks. Until then,]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-00.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/right.mp3" rationaleimage="images/rationale/1.1.jpg" rationale="Right" value="1" choicesay="LOS ANGELES   Scientists who study planets dream of sending a geologist to Mars to survey its rocks Until then"><![CDATA[LOS ANGELES  -  Scientists who study planets dream of sending a geologist to Mars to survey its rocks. Until then,]]></answer>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-01.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/tryagain.mp3" rationaleimage="images/rationale/1.1.jpg" rationale="Try again" value="0" choicesay="they have to settle for examining meteorites from Mars"><![CDATA[they have to settle for examining meteorites from Mars.]]></answer>
	</question>
	<question>
		<phrase isaudiomp3="1" mp3="AUDIO_REPOS/2.0.mp3"></phrase>
		<question isaudiomp3="1" rationale="0" picture="images/question2.jpg" mp3="AUDIO_REPOS/2061-01.mp3" exercise_type="" questionmode="" choicemode="" answerbankid="" answerbankmode="" rationalemode="" playonload="" mp3speed="" ttsspeed="" passage="1" show_passage="" show_passage_audioplayer="" passage_audio_type="" showvideo="" video="" enable_audio_recorder="" recorder_mode=""><![CDATA[they have to settle for examining meteorites from Mars.]]></question>
		<saythis><![CDATA[they have to settle for examining meteorites from Mars.]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-01.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/right.mp3" rationaleimage="images/rationale/2.1.jpg" rationale="Right" value="1" choicesay="they have to settle for examining meteorites from Mars"><![CDATA[they have to settle for examining meteorites from Mars.]]></answer>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-02.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/tryagain.mp3" rationaleimage="images/rationale/2.1.jpg" rationale="Try again" value="0" choicesay="These rocks are chunks of the Red Planet that land on Earth after hurtling through space"><![CDATA[These rocks are chunks of the Red Planet that land on Earth after hurtling through space.]]></answer>
	</question>
	<question>
		<phrase isaudiomp3="1" mp3="AUDIO_REPOS/3.0.mp3"></phrase>
		<question isaudiomp3="1" rationale="0" picture="images/question3.jpg" mp3="AUDIO_REPOS/2061-02.mp3" exercise_type="" questionmode="" choicemode="" answerbankid="" answerbankmode="" rationalemode="" playonload="" mp3speed="" ttsspeed="" passage="1" show_passage="" show_passage_audioplayer="" passage_audio_type="" showvideo="" video="" enable_audio_recorder="" recorder_mode=""><![CDATA[These rocks are chunks of the Red Planet that land on Earth after hurtling through space.]]></question>
		<saythis><![CDATA[These rocks are chunks of the Red Planet that land on Earth after hurtling through space.]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-02.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/right.mp3" rationaleimage="images/rationale/3.1.jpg" rationale="Right" value="1" choicesay="These rocks are chunks of the Red Planet that land on Earth after hurtling through space"><![CDATA[These rocks are chunks of the Red Planet that land on Earth after hurtling through space.]]></answer>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-03.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/tryagain.mp3" rationaleimage="images/rationale/3.1.jpg" rationale="Try again" value="0" choicesay="The meteorites arrive in pretty rough shape They get toasted as they fall through the atmosphere Still"><![CDATA[The meteorites arrive in pretty rough shape. They get toasted as they fall through the atmosphere. Still,]]></answer>
	</question>
	<question>
		<phrase isaudiomp3="1" mp3="AUDIO_REPOS/4.0.mp3"></phrase>
		<question isaudiomp3="1" rationale="0" picture="images/question4.jpg" mp3="AUDIO_REPOS/2061-03.mp3" exercise_type="" questionmode="" choicemode="" answerbankid="" answerbankmode="" rationalemode="" playonload="" mp3speed="" ttsspeed="" passage="1" show_passage="" show_passage_audioplayer="" passage_audio_type="" showvideo="" video="" enable_audio_recorder="" recorder_mode=""><![CDATA[The meteorites arrive in pretty rough shape. They get toasted as they fall through the atmosphere. Still,]]></question>
		<saythis><![CDATA[The meteorites arrive in pretty rough shape. They get toasted as they fall through the atmosphere. Still,]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-03.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/right.mp3" rationaleimage="images/rationale/4.1.jpg" rationale="Right" value="1" choicesay="The meteorites arrive in pretty rough shape They get toasted as they fall through the atmosphere Still"><![CDATA[The meteorites arrive in pretty rough shape. They get toasted as they fall through the atmosphere. Still,]]></answer>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-04.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/tryagain.mp3" rationaleimage="images/rationale/4.1.jpg" rationale="Try again" value="0" choicesay="these meteorites provide a lot of information to geologists whose job it is to study rocks"><![CDATA[these meteorites provide a lot of information to geologists, whose job it is to study rocks.]]></answer>
	</question>
	<question>
		<phrase isaudiomp3="1" mp3="AUDIO_REPOS/5.0.mp3"></phrase>
		<question isaudiomp3="1" rationale="0" picture="images/question5.jpg" mp3="AUDIO_REPOS/2061-04.mp3" exercise_type="" questionmode="" choicemode="" answerbankid="" answerbankmode="" rationalemode="" playonload="" mp3speed="" ttsspeed="" passage="1" show_passage="" show_passage_audioplayer="" passage_audio_type="" showvideo="" video="" enable_audio_recorder="" recorder_mode=""><![CDATA[these meteorites provide a lot of information to geologists, whose job it is to study rocks.]]></question>
		<saythis><![CDATA[these meteorites provide a lot of information to geologists, whose job it is to study rocks.]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-04.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/right.mp3" rationaleimage="images/rationale/5.1.jpg" rationale="Right" value="1" choicesay="these meteorites provide a lot of information to geologists whose job it is to study rocks"><![CDATA[these meteorites provide a lot of information to geologists, whose job it is to study rocks.]]></answer>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-05.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/tryagain.mp3" rationaleimage="images/rationale/5.1.jpg" rationale="Try again" value="0" choicesay="But it can be hard for geologists to make sense "><![CDATA[But it can be hard for geologists to make sense ]]></answer>
	</question>
	<question>
		<phrase isaudiomp3="1" mp3="AUDIO_REPOS/6.0.mp3"></phrase>
		<question isaudiomp3="1" rationale="0" picture="images/question6.jpg" mp3="AUDIO_REPOS/2061-05.mp3" exercise_type="" questionmode="" choicemode="" answerbankid="" answerbankmode="" rationalemode="" playonload="" mp3speed="" ttsspeed="" passage="1" show_passage="" show_passage_audioplayer="" passage_audio_type="" showvideo="" video="" enable_audio_recorder="" recorder_mode=""><![CDATA[But it can be hard for geologists to make sense ]]></question>
		<saythis><![CDATA[But it can be hard for geologists to make sense ]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-05.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/right.mp3" rationaleimage="images/rationale/6.1.jpg" rationale="Right" value="1" choicesay="But it can be hard for geologists to make sense "><![CDATA[But it can be hard for geologists to make sense ]]></answer>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-06.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/tryagain.mp3" rationaleimage="images/rationale/6.1.jpg" rationale="Try again" value="0" choicesay="of what they see when they can't agree on how old a rock is "><![CDATA[of what they see when they can't agree on how old a rock is. ]]></answer>
	</question>
	<question>
		<phrase isaudiomp3="1" mp3="AUDIO_REPOS/7.0.mp3"></phrase>
		<question isaudiomp3="1" rationale="0" picture="images/question7.jpg" mp3="AUDIO_REPOS/2061-06.mp3" exercise_type="" questionmode="" choicemode="" answerbankid="" answerbankmode="" rationalemode="" playonload="" mp3speed="" ttsspeed="" passage="1" show_passage="" show_passage_audioplayer="" passage_audio_type="" showvideo="" video="" enable_audio_recorder="" recorder_mode=""><![CDATA[of what they see when they can't agree on how old a rock is. ]]></question>
		<saythis><![CDATA[of what they see when they can't agree on how old a rock is. ]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-06.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/right.mp3" rationaleimage="images/rationale/7.1.jpg" rationale="Right" value="1" choicesay="of what they see when they can't agree on how old a rock is "><![CDATA[of what they see when they can't agree on how old a rock is. ]]></answer>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-07.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/tryagain.mp3" rationaleimage="images/rationale/7.1.jpg" rationale="Try again" value="0" choicesay="And when it comes to certain rocks scientists disagree by as much as 4 billion years"><![CDATA[And when it comes to certain rocks, scientists disagree by as much as 4 billion years.]]></answer>
	</question>
	<question>
		<phrase isaudiomp3="1" mp3="AUDIO_REPOS/8.0.mp3"></phrase>
		<question isaudiomp3="1" rationale="0" picture="images/question8.jpg" mp3="AUDIO_REPOS/2061-07.mp3" exercise_type="" questionmode="" choicemode="" answerbankid="" answerbankmode="" rationalemode="" playonload="" mp3speed="" ttsspeed="" passage="1" show_passage="" show_passage_audioplayer="" passage_audio_type="" showvideo="" video="" enable_audio_recorder="" recorder_mode=""><![CDATA[And when it comes to certain rocks, scientists disagree by as much as 4 billion years.]]></question>
		<saythis><![CDATA[And when it comes to certain rocks, scientists disagree by as much as 4 billion years.]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-07.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/right.mp3" rationaleimage="images/rationale/8.1.jpg" rationale="Right" value="1" choicesay="And when it comes to certain rocks scientists disagree by as much as 4 billion years"><![CDATA[And when it comes to certain rocks, scientists disagree by as much as 4 billion years.]]></answer>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-08.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/tryagain.mp3" rationaleimage="images/rationale/8.1.jpg" rationale="Try again" value="0" choicesay="Mars itself isn't much older than 4 billion years So the question is: Do these rocks tell the beginning"><![CDATA[Mars itself isn't much older than 4 billion years. So the question is: Do these rocks tell the beginning,]]></answer>
	</question>
	<question>
		<phrase isaudiomp3="1" mp3="AUDIO_REPOS/9.0.mp3"></phrase>
		<question isaudiomp3="1" rationale="0" picture="images/question9.jpg" mp3="AUDIO_REPOS/2061-08.mp3" exercise_type="" questionmode="" choicemode="" answerbankid="" answerbankmode="" rationalemode="" playonload="" mp3speed="" ttsspeed="" passage="1" show_passage="" show_passage_audioplayer="" passage_audio_type="" showvideo="" video="" enable_audio_recorder="" recorder_mode=""><![CDATA[Mars itself isn't much older than 4 billion years. So the question is: Do these rocks tell the beginning,]]></question>
		<saythis><![CDATA[Mars itself isn't much older than 4 billion years. So the question is: Do these rocks tell the beginning,]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-08.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/right.mp3" rationaleimage="images/rationale/9.1.jpg" rationale="Right" value="1" choicesay="Mars itself isn't much older than 4 billion years So the question is: Do these rocks tell the beginning"><![CDATA[Mars itself isn't much older than 4 billion years. So the question is: Do these rocks tell the beginning,]]></answer>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-09.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/tryagain.mp3" rationaleimage="images/rationale/9.1.jpg" rationale="Try again" value="0" choicesay="or the end of Mars' story"><![CDATA[or the end, of Mars' story?]]></answer>
	</question>
	<question>
		<phrase isaudiomp3="1" mp3="AUDIO_REPOS/10.0.mp3"></phrase>
		<question isaudiomp3="1" rationale="0" picture="images/question10.jpg" mp3="AUDIO_REPOS/2061-09.mp3" exercise_type="" questionmode="" choicemode="" answerbankid="" answerbankmode="" rationalemode="" playonload="" mp3speed="" ttsspeed="" passage="1" show_passage="" show_passage_audioplayer="" passage_audio_type="" showvideo="" video="" enable_audio_recorder="" recorder_mode=""><![CDATA[or the end, of Mars' story?]]></question>
		<saythis><![CDATA[or the end, of Mars' story?]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-09.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/right.mp3" rationaleimage="images/rationale/10.1.jpg" rationale="Right" value="1" choicesay="or the end of Mars' story"><![CDATA[or the end, of Mars' story?]]></answer>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-10.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/tryagain.mp3" rationaleimage="images/rationale/10.1.jpg" rationale="Try again" value="0" choicesay="Recently a team of scientists tried to answer this question for one group of meteorites"><![CDATA[Recently, a team of scientists tried to answer this question for one group of meteorites.]]></answer>
	</question>
	<question>
		<phrase isaudiomp3="1" mp3="AUDIO_REPOS/11.0.mp3"></phrase>
		<question isaudiomp3="1" rationale="0" picture="images/question11.jpg" mp3="AUDIO_REPOS/2061-10.mp3" exercise_type="" questionmode="" choicemode="" answerbankid="" answerbankmode="" rationalemode="" playonload="" mp3speed="" ttsspeed="" passage="1" show_passage="" show_passage_audioplayer="" passage_audio_type="" showvideo="" video="" enable_audio_recorder="" recorder_mode=""><![CDATA[Recently, a team of scientists tried to answer this question for one group of meteorites.]]></question>
		<saythis><![CDATA[Recently, a team of scientists tried to answer this question for one group of meteorites.]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-10.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/right.mp3" rationaleimage="images/rationale/11.1.jpg" rationale="Right" value="1" choicesay="Recently a team of scientists tried to answer this question for one group of meteorites"><![CDATA[Recently, a team of scientists tried to answer this question for one group of meteorites.]]></answer>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-11.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/tryagain.mp3" rationaleimage="images/rationale/11.1.jpg" rationale="Try again" value="0" choicesay="These rocks are known as shergottites"><![CDATA[These rocks are known as shergottites.]]></answer>
	</question>
	<question>
		<phrase isaudiomp3="1" mp3="AUDIO_REPOS/12.0.mp3"></phrase>
		<question isaudiomp3="1" rationale="0" picture="images/question12.jpg" mp3="AUDIO_REPOS/2061-11.mp3" exercise_type="" questionmode="" choicemode="" answerbankid="" answerbankmode="" rationalemode="" playonload="" mp3speed="" ttsspeed="" passage="1" show_passage="" show_passage_audioplayer="" passage_audio_type="" showvideo="" video="" enable_audio_recorder="" recorder_mode=""><![CDATA[These rocks are known as shergottites.]]></question>
		<saythis><![CDATA[These rocks are known as shergottites.]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-11.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/right.mp3" rationaleimage="images/rationale/12.1.jpg" rationale="Right" value="1" choicesay="These rocks are known as shergottites"><![CDATA[These rocks are known as shergottites.]]></answer>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-12.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/tryagain.mp3" rationaleimage="images/rationale/12.1.jpg" rationale="Try again" value="0" choicesay="Was There Life On Mars"><![CDATA[Was There Life On Mars?]]></answer>
	</question>
	<question>
		<phrase isaudiomp3="1" mp3="AUDIO_REPOS/13.0.mp3"></phrase>
		<question isaudiomp3="1" rationale="0" picture="images/question13.jpg" mp3="AUDIO_REPOS/2061-12.mp3" exercise_type="" questionmode="" choicemode="" answerbankid="" answerbankmode="" rationalemode="" playonload="" mp3speed="" ttsspeed="" passage="1" show_passage="" show_passage_audioplayer="" passage_audio_type="" showvideo="" video="" enable_audio_recorder="" recorder_mode=""><![CDATA[Was There Life On Mars?]]></question>
		<saythis><![CDATA[Was There Life On Mars?]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-12.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/right.mp3" rationaleimage="images/rationale/13.1.jpg" rationale="Right" value="1" choicesay="Was There Life On Mars"><![CDATA[Was There Life On Mars?]]></answer>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-13.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/tryagain.mp3" rationaleimage="images/rationale/13.1.jpg" rationale="Try again" value="0" choicesay="Martian space rocks tend to be very old Shergottites though are generally thought to be remarkably young"><![CDATA[Martian space rocks tend to be very old. Shergottites, though, are generally thought to be remarkably young.]]></answer>
	</question>
	<question>
		<phrase isaudiomp3="1" mp3="AUDIO_REPOS/14.0.mp3"></phrase>
		<question isaudiomp3="1" rationale="0" picture="images/question14.jpg" mp3="AUDIO_REPOS/2061-13.mp3" exercise_type="" questionmode="" choicemode="" answerbankid="" answerbankmode="" rationalemode="" playonload="" mp3speed="" ttsspeed="" passage="1" show_passage="" show_passage_audioplayer="" passage_audio_type="" showvideo="" video="" enable_audio_recorder="" recorder_mode=""><![CDATA[Martian space rocks tend to be very old. Shergottites, though, are generally thought to be remarkably young.]]></question>
		<saythis><![CDATA[Martian space rocks tend to be very old. Shergottites, though, are generally thought to be remarkably young.]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-13.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/right.mp3" rationaleimage="images/rationale/14.1.jpg" rationale="Right" value="1" choicesay="Martian space rocks tend to be very old Shergottites though are generally thought to be remarkably young"><![CDATA[Martian space rocks tend to be very old. Shergottites, though, are generally thought to be remarkably young.]]></answer>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-14.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/tryagain.mp3" rationaleimage="images/rationale/14.1.jpg" rationale="Try again" value="0" choicesay="Most scientists believe they were formed by volcanoes about 150 to 250 million years ago"><![CDATA[Most scientists believe they were formed by volcanoes about 150 to 250 million years ago.]]></answer>
	</question>
	<question>
		<phrase isaudiomp3="1" mp3="AUDIO_REPOS/15.0.mp3"></phrase>
		<question isaudiomp3="1" rationale="0" picture="images/question15.jpg" mp3="AUDIO_REPOS/2061-14.mp3" exercise_type="" questionmode="" choicemode="" answerbankid="" answerbankmode="" rationalemode="" playonload="" mp3speed="" ttsspeed="" passage="1" show_passage="" show_passage_audioplayer="" passage_audio_type="" showvideo="" video="" enable_audio_recorder="" recorder_mode=""><![CDATA[Most scientists believe they were formed by volcanoes about 150 to 250 million years ago.]]></question>
		<saythis><![CDATA[Most scientists believe they were formed by volcanoes about 150 to 250 million years ago.]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-14.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/right.mp3" rationaleimage="images/rationale/15.1.jpg" rationale="Right" value="1" choicesay="Most scientists believe they were formed by volcanoes about 150 to 250 million years ago"><![CDATA[Most scientists believe they were formed by volcanoes about 150 to 250 million years ago.]]></answer>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-15.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/tryagain.mp3" rationaleimage="images/rationale/15.1.jpg" rationale="Try again" value="0" choicesay="This would mean they formed during Earth's Jurassic period when dinosaurs roamed the land"><![CDATA[This would mean they formed during Earth's Jurassic period, when dinosaurs roamed the land.]]></answer>
	</question>
	<question>
		<phrase isaudiomp3="1" mp3="AUDIO_REPOS/16.0.mp3"></phrase>
		<question isaudiomp3="1" rationale="0" picture="images/question16.jpg" mp3="AUDIO_REPOS/2061-15.mp3" exercise_type="" questionmode="" choicemode="" answerbankid="" answerbankmode="" rationalemode="" playonload="" mp3speed="" ttsspeed="" passage="1" show_passage="" show_passage_audioplayer="" passage_audio_type="" showvideo="" video="" enable_audio_recorder="" recorder_mode=""><![CDATA[This would mean they formed during Earth's Jurassic period, when dinosaurs roamed the land.]]></question>
		<saythis><![CDATA[This would mean they formed during Earth's Jurassic period, when dinosaurs roamed the land.]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-15.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/right.mp3" rationaleimage="images/rationale/16.1.jpg" rationale="Right" value="1" choicesay="This would mean they formed during Earth's Jurassic period when dinosaurs roamed the land"><![CDATA[This would mean they formed during Earth's Jurassic period, when dinosaurs roamed the land.]]></answer>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-16.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/tryagain.mp3" rationaleimage="images/rationale/16.1.jpg" rationale="Try again" value="0" choicesay="If so shergottites are a sign that Mars might have had volcanoes not too long ago"><![CDATA[If so, shergottites are a sign that Mars might have had volcanoes not too long ago.]]></answer>
	</question>
	<question>
		<phrase isaudiomp3="1" mp3="AUDIO_REPOS/17.0.mp3"></phrase>
		<question isaudiomp3="1" rationale="0" picture="images/question17.jpg" mp3="AUDIO_REPOS/2061-16.mp3" exercise_type="" questionmode="" choicemode="" answerbankid="" answerbankmode="" rationalemode="" playonload="" mp3speed="" ttsspeed="" passage="1" show_passage="" show_passage_audioplayer="" passage_audio_type="" showvideo="" video="" enable_audio_recorder="" recorder_mode=""><![CDATA[If so, shergottites are a sign that Mars might have had volcanoes not too long ago.]]></question>
		<saythis><![CDATA[If so, shergottites are a sign that Mars might have had volcanoes not too long ago.]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-16.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/right.mp3" rationaleimage="images/rationale/17.1.jpg" rationale="Right" value="1" choicesay="If so shergottites are a sign that Mars might have had volcanoes not too long ago"><![CDATA[If so, shergottites are a sign that Mars might have had volcanoes not too long ago.]]></answer>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-17.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/tryagain.mp3" rationaleimage="images/rationale/17.1.jpg" rationale="Try again" value="0" choicesay="And that means it might have been friendly to some form of life said planetary geochemist Munir Humayun"><![CDATA[And that means it might have been friendly to some form of life, said planetary geochemist Munir Humayun.]]></answer>
	</question>
	<question>
		<phrase isaudiomp3="1" mp3="AUDIO_REPOS/18.0.mp3"></phrase>
		<question isaudiomp3="1" rationale="0" picture="images/question18.jpg" mp3="AUDIO_REPOS/2061-17.mp3" exercise_type="" questionmode="" choicemode="" answerbankid="" answerbankmode="" rationalemode="" playonload="" mp3speed="" ttsspeed="" passage="1" show_passage="" show_passage_audioplayer="" passage_audio_type="" showvideo="" video="" enable_audio_recorder="" recorder_mode=""><![CDATA[And that means it might have been friendly to some form of life, said planetary geochemist Munir Humayun.]]></question>
		<saythis><![CDATA[And that means it might have been friendly to some form of life, said planetary geochemist Munir Humayun.]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-17.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/right.mp3" rationaleimage="images/rationale/18.1.jpg" rationale="Right" value="1" choicesay="And that means it might have been friendly to some form of life said planetary geochemist Munir Humayun"><![CDATA[And that means it might have been friendly to some form of life, said planetary geochemist Munir Humayun.]]></answer>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-18.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/tryagain.mp3" rationaleimage="images/rationale/18.1.jpg" rationale="Try again" value="0" choicesay="But some people believe that shergottites are actually about 4 billion years old If this turned out to be true"><![CDATA[But some people believe that shergottites are actually about 4 billion years old. If this turned out to be true,]]></answer>
	</question>
	<question>
		<phrase isaudiomp3="1" mp3="AUDIO_REPOS/19.0.mp3"></phrase>
		<question isaudiomp3="1" rationale="0" picture="images/question19.jpg" mp3="AUDIO_REPOS/2061-18.mp3" exercise_type="" questionmode="" choicemode="" answerbankid="" answerbankmode="" rationalemode="" playonload="" mp3speed="" ttsspeed="" passage="1" show_passage="" show_passage_audioplayer="" passage_audio_type="" showvideo="" video="" enable_audio_recorder="" recorder_mode=""><![CDATA[But some people believe that shergottites are actually about 4 billion years old. If this turned out to be true,]]></question>
		<saythis><![CDATA[But some people believe that shergottites are actually about 4 billion years old. If this turned out to be true,]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-18.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/right.mp3" rationaleimage="images/rationale/19.1.jpg" rationale="Right" value="1" choicesay="But some people believe that shergottites are actually about 4 billion years old If this turned out to be true"><![CDATA[But some people believe that shergottites are actually about 4 billion years old. If this turned out to be true,]]></answer>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-19.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/tryagain.mp3" rationaleimage="images/rationale/19.1.jpg" rationale="Try again" value="0" choicesay="scientists would have to change the way they think about life on Mars"><![CDATA[scientists would have to change the way they think about life on Mars.]]></answer>
	</question>
	<question>
		<phrase isaudiomp3="1" mp3="AUDIO_REPOS/20.0.mp3"></phrase>
		<question isaudiomp3="1" rationale="0" picture="images/question20.jpg" mp3="AUDIO_REPOS/2061-19.mp3" exercise_type="" questionmode="" choicemode="" answerbankid="" answerbankmode="" rationalemode="" playonload="" mp3speed="" ttsspeed="" passage="1" show_passage="" show_passage_audioplayer="" passage_audio_type="" showvideo="" video="" enable_audio_recorder="" recorder_mode=""><![CDATA[scientists would have to change the way they think about life on Mars.]]></question>
		<saythis><![CDATA[scientists would have to change the way they think about life on Mars.]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-19.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/right.mp3" rationaleimage="images/rationale/20.1.jpg" rationale="Right" value="1" choicesay="scientists would have to change the way they think about life on Mars"><![CDATA[scientists would have to change the way they think about life on Mars.]]></answer>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-20.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/tryagain.mp3" rationaleimage="images/rationale/20.1.jpg" rationale="Try again" value="0" choicesay="Most of us understand that if there is  life on Mars it's not going to be roaming on the surface"><![CDATA["Most of us understand that if there is   life on Mars, it's not going to be roaming on the surface.]]></answer>
	</question>
	<question>
		<phrase isaudiomp3="1" mp3="AUDIO_REPOS/21.0.mp3"></phrase>
		<question isaudiomp3="1" rationale="0" picture="images/question21.jpg" mp3="AUDIO_REPOS/2061-20.mp3" exercise_type="" questionmode="" choicemode="" answerbankid="" answerbankmode="" rationalemode="" playonload="" mp3speed="" ttsspeed="" passage="1" show_passage="" show_passage_audioplayer="" passage_audio_type="" showvideo="" video="" enable_audio_recorder="" recorder_mode=""><![CDATA["Most of us understand that if there is ... life on Mars, it's not going to be roaming on the surface.]]></question>
		<saythis><![CDATA["Most of us understand that if there is   life on Mars, it's not going to be roaming on the surface.]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-20.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/right.mp3" rationaleimage="images/rationale/21.1.jpg" rationale="Right" value="1" choicesay="Most of us understand that if there is  life on Mars it's not going to be roaming on the surface"><![CDATA["Most of us understand that if there is   life on Mars, it's not going to be roaming on the surface.]]></answer>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-21.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/tryagain.mp3" rationaleimage="images/rationale/21.1.jpg" rationale="Try again" value="0" choicesay="but it could be thriving underground with the heat energy provided by [volcanoes] Humayun said"><![CDATA[but it could be thriving underground with the heat energy provided by [volcanoes]," Humayun said.]]></answer>
	</question>
	<question>
		<phrase isaudiomp3="1" mp3="AUDIO_REPOS/22.0.mp3"></phrase>
		<question isaudiomp3="1" rationale="0" picture="images/question22.jpg" mp3="AUDIO_REPOS/2061-21.mp3" exercise_type="" questionmode="" choicemode="" answerbankid="" answerbankmode="" rationalemode="" playonload="" mp3speed="" ttsspeed="" passage="1" show_passage="" show_passage_audioplayer="" passage_audio_type="" showvideo="" video="" enable_audio_recorder="" recorder_mode=""><![CDATA[but it could be thriving underground with the heat energy provided by [volcanoes]," Humayun said.]]></question>
		<saythis><![CDATA[but it could be thriving underground with the heat energy provided by [volcanoes]," Humayun said.]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-21.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/right.mp3" rationaleimage="images/rationale/22.1.jpg" rationale="Right" value="1" choicesay="but it could be thriving underground with the heat energy provided by [volcanoes] Humayun said"><![CDATA[but it could be thriving underground with the heat energy provided by [volcanoes]," Humayun said.]]></answer>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-22.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/tryagain.mp3" rationaleimage="images/rationale/22.1.jpg" rationale="Try again" value="0" choicesay="However if there hasn't been [volcanic activity in] 4 billion years"><![CDATA[However, "if there hasn't been [volcanic activity in] 4 billion years,]]></answer>
	</question>
	<question>
		<phrase isaudiomp3="1" mp3="AUDIO_REPOS/23.0.mp3"></phrase>
		<question isaudiomp3="1" rationale="0" picture="images/question23.jpg" mp3="AUDIO_REPOS/2061-22.mp3" exercise_type="" questionmode="" choicemode="" answerbankid="" answerbankmode="" rationalemode="" playonload="" mp3speed="" ttsspeed="" passage="1" show_passage="" show_passage_audioplayer="" passage_audio_type="" showvideo="" video="" enable_audio_recorder="" recorder_mode=""><![CDATA[However, "if there hasn't been [volcanic activity in] 4 billion years,]]></question>
		<saythis><![CDATA[However, "if there hasn't been [volcanic activity in] 4 billion years,]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-22.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/right.mp3" rationaleimage="images/rationale/23.1.jpg" rationale="Right" value="1" choicesay="However if there hasn't been [volcanic activity in] 4 billion years"><![CDATA[However, "if there hasn't been [volcanic activity in] 4 billion years,]]></answer>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-23.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/tryagain.mp3" rationaleimage="images/rationale/23.1.jpg" rationale="Try again" value="0" choicesay="it would be very difficult to believe there was life left on Mars"><![CDATA[it would be very difficult to believe there was life left on Mars."]]></answer>
	</question>
	<question>
		<phrase isaudiomp3="1" mp3="AUDIO_REPOS/24.0.mp3"></phrase>
		<question isaudiomp3="1" rationale="0" picture="images/question24.jpg" mp3="AUDIO_REPOS/2061-23.mp3" exercise_type="" questionmode="" choicemode="" answerbankid="" answerbankmode="" rationalemode="" playonload="" mp3speed="" ttsspeed="" passage="1" show_passage="" show_passage_audioplayer="" passage_audio_type="" showvideo="" video="" enable_audio_recorder="" recorder_mode=""><![CDATA[it would be very difficult to believe there was life left on Mars."]]></question>
		<saythis><![CDATA[it would be very difficult to believe there was life left on Mars."]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-23.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/right.mp3" rationaleimage="images/rationale/24.1.jpg" rationale="Right" value="1" choicesay="it would be very difficult to believe there was life left on Mars"><![CDATA[it would be very difficult to believe there was life left on Mars."]]></answer>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-24.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/tryagain.mp3" rationaleimage="images/rationale/24.1.jpg" rationale="Try again" value="0" choicesay="To settle the question researchers examined a meteorite known as Northwest Africa 5298"><![CDATA[To settle the question, researchers examined a meteorite known as Northwest Africa 5298.]]></answer>
	</question>
	<question>
		<phrase isaudiomp3="1" mp3="AUDIO_REPOS/25.0.mp3"></phrase>
		<question isaudiomp3="1" rationale="0" picture="images/question25.jpg" mp3="AUDIO_REPOS/2061-24.mp3" exercise_type="" questionmode="" choicemode="" answerbankid="" answerbankmode="" rationalemode="" playonload="" mp3speed="" ttsspeed="" passage="1" show_passage="" show_passage_audioplayer="" passage_audio_type="" showvideo="" video="" enable_audio_recorder="" recorder_mode=""><![CDATA[To settle the question, researchers examined a meteorite known as Northwest Africa 5298.]]></question>
		<saythis><![CDATA[To settle the question, researchers examined a meteorite known as Northwest Africa 5298.]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-24.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/right.mp3" rationaleimage="images/rationale/25.1.jpg" rationale="Right" value="1" choicesay="To settle the question researchers examined a meteorite known as Northwest Africa 5298"><![CDATA[To settle the question, researchers examined a meteorite known as Northwest Africa 5298.]]></answer>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-25.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/tryagain.mp3" rationaleimage="images/rationale/25.1.jpg" rationale="Try again" value="0" choicesay="They looked at very tiny deposits within it called baddeleyites These tough"><![CDATA[They looked at very tiny deposits within it called baddeleyites. These tough,]]></answer>
	</question>
	<question>
		<phrase isaudiomp3="1" mp3="AUDIO_REPOS/26.0.mp3"></phrase>
		<question isaudiomp3="1" rationale="0" picture="images/question26.jpg" mp3="AUDIO_REPOS/2061-25.mp3" exercise_type="" questionmode="" choicemode="" answerbankid="" answerbankmode="" rationalemode="" playonload="" mp3speed="" ttsspeed="" passage="1" show_passage="" show_passage_audioplayer="" passage_audio_type="" showvideo="" video="" enable_audio_recorder="" recorder_mode=""><![CDATA[They looked at very tiny deposits within it called baddeleyites. These tough,]]></question>
		<saythis><![CDATA[They looked at very tiny deposits within it called baddeleyites. These tough,]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-25.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/right.mp3" rationaleimage="images/rationale/26.1.jpg" rationale="Right" value="1" choicesay="They looked at very tiny deposits within it called baddeleyites These tough"><![CDATA[They looked at very tiny deposits within it called baddeleyites. These tough,]]></answer>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-26.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/tryagain.mp3" rationaleimage="images/rationale/26.1.jpg" rationale="Try again" value="0" choicesay="zirconium rich minerals are 10 times smaller than the diameter of a human hair said geochemist Axel Schmitt"><![CDATA[zirconium-rich minerals are "10 times smaller than the diameter of a human hair," said geochemist Axel Schmitt.]]></answer>
	</question>
	<question>
		<phrase isaudiomp3="1" mp3="AUDIO_REPOS/27.0.mp3"></phrase>
		<question isaudiomp3="1" rationale="0" picture="images/question27.jpg" mp3="AUDIO_REPOS/2061-26.mp3" exercise_type="" questionmode="" choicemode="" answerbankid="" answerbankmode="" rationalemode="" playonload="" mp3speed="" ttsspeed="" passage="1" show_passage="" show_passage_audioplayer="" passage_audio_type="" showvideo="" video="" enable_audio_recorder="" recorder_mode=""><![CDATA[zirconium-rich minerals are "10 times smaller than the diameter of a human hair," said geochemist Axel Schmitt.]]></question>
		<saythis><![CDATA[zirconium rich minerals are "10 times smaller than the diameter of a human hair," said geochemist Axel Schmitt.]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-26.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/right.mp3" rationaleimage="images/rationale/27.1.jpg" rationale="Right" value="1" choicesay="zirconium rich minerals are 10 times smaller than the diameter of a human hair said geochemist Axel Schmitt"><![CDATA[zirconium-rich minerals are "10 times smaller than the diameter of a human hair," said geochemist Axel Schmitt.]]></answer>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-27.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/tryagain.mp3" rationaleimage="images/rationale/27.1.jpg" rationale="Try again" value="0" choicesay="A Tiny Rock Might Have The Answer"><![CDATA[A Tiny Rock Might Have The Answer]]></answer>
	</question>
	<question>
		<phrase isaudiomp3="1" mp3="AUDIO_REPOS/28.0.mp3"></phrase>
		<question isaudiomp3="1" rationale="0" picture="images/question28.jpg" mp3="AUDIO_REPOS/2061-27.mp3" exercise_type="" questionmode="" choicemode="" answerbankid="" answerbankmode="" rationalemode="" playonload="" mp3speed="" ttsspeed="" passage="1" show_passage="" show_passage_audioplayer="" passage_audio_type="" showvideo="" video="" enable_audio_recorder="" recorder_mode=""><![CDATA[A Tiny Rock Might Have The Answer]]></question>
		<saythis><![CDATA[A Tiny Rock Might Have The Answer]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-27.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/right.mp3" rationaleimage="images/rationale/28.1.jpg" rationale="Right" value="1" choicesay="A Tiny Rock Might Have The Answer"><![CDATA[A Tiny Rock Might Have The Answer]]></answer>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-28.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/tryagain.mp3" rationaleimage="images/rationale/28.1.jpg" rationale="Try again" value="0" choicesay="To figure out how old a rock is scientists measure certain radioactive elements inside it"><![CDATA[To figure out how old a rock is, scientists measure certain radioactive elements inside it.]]></answer>
	</question>
	<question>
		<phrase isaudiomp3="1" mp3="AUDIO_REPOS/29.0.mp3"></phrase>
		<question isaudiomp3="1" rationale="0" picture="images/question29.jpg" mp3="AUDIO_REPOS/2061-28.mp3" exercise_type="" questionmode="" choicemode="" answerbankid="" answerbankmode="" rationalemode="" playonload="" mp3speed="" ttsspeed="" passage="1" show_passage="" show_passage_audioplayer="" passage_audio_type="" showvideo="" video="" enable_audio_recorder="" recorder_mode=""><![CDATA[To figure out how old a rock is, scientists measure certain radioactive elements inside it.]]></question>
		<saythis><![CDATA[To figure out how old a rock is, scientists measure certain radioactive elements inside it.]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-28.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/right.mp3" rationaleimage="images/rationale/29.1.jpg" rationale="Right" value="1" choicesay="To figure out how old a rock is scientists measure certain radioactive elements inside it"><![CDATA[To figure out how old a rock is, scientists measure certain radioactive elements inside it.]]></answer>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-29.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/tryagain.mp3" rationaleimage="images/rationale/29.1.jpg" rationale="Try again" value="0" choicesay="But if a big crash or explosion melts the rock down that evidence gets erased"><![CDATA[But if a big crash or explosion melts the rock down, that evidence gets erased.]]></answer>
	</question>
	<question>
		<phrase isaudiomp3="1" mp3="AUDIO_REPOS/30.0.mp3"></phrase>
		<question isaudiomp3="1" rationale="0" picture="images/question30.jpg" mp3="AUDIO_REPOS/2061-29.mp3" exercise_type="" questionmode="" choicemode="" answerbankid="" answerbankmode="" rationalemode="" playonload="" mp3speed="" ttsspeed="" passage="1" show_passage="" show_passage_audioplayer="" passage_audio_type="" showvideo="" video="" enable_audio_recorder="" recorder_mode=""><![CDATA[But if a big crash or explosion melts the rock down, that evidence gets erased.]]></question>
		<saythis><![CDATA[But if a big crash or explosion melts the rock down, that evidence gets erased.]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-29.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/right.mp3" rationaleimage="images/rationale/30.1.jpg" rationale="Right" value="1" choicesay="But if a big crash or explosion melts the rock down that evidence gets erased"><![CDATA[But if a big crash or explosion melts the rock down, that evidence gets erased.]]></answer>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-30.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/tryagain.mp3" rationaleimage="images/rationale/30.1.jpg" rationale="Try again" value="0" choicesay="That's why scientists picked the tiny baddeleyites: They are hard little minerals It's not easy to melt them down"><![CDATA[That's why scientists picked the tiny baddeleyites: They are hard little minerals. It's not easy to melt them down.]]></answer>
	</question>
	<question>
		<phrase isaudiomp3="1" mp3="AUDIO_REPOS/31.0.mp3"></phrase>
		<question isaudiomp3="1" rationale="0" picture="images/question31.jpg" mp3="AUDIO_REPOS/2061-30.mp3" exercise_type="" questionmode="" choicemode="" answerbankid="" answerbankmode="" rationalemode="" playonload="" mp3speed="" ttsspeed="" passage="1" show_passage="" show_passage_audioplayer="" passage_audio_type="" showvideo="" video="" enable_audio_recorder="" recorder_mode=""><![CDATA[That's why scientists picked the tiny baddeleyites: They are hard little minerals. It's not easy to melt them down.]]></question>
		<saythis><![CDATA[That's why scientists picked the tiny baddeleyites: They are hard little minerals. It's not easy to melt them down.]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-30.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/right.mp3" rationaleimage="images/rationale/31.1.jpg" rationale="Right" value="1" choicesay="That's why scientists picked the tiny baddeleyites: They are hard little minerals It's not easy to melt them down"><![CDATA[That's why scientists picked the tiny baddeleyites: They are hard little minerals. It's not easy to melt them down.]]></answer>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-31.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/tryagain.mp3" rationaleimage="images/rationale/31.1.jpg" rationale="Try again" value="0" choicesay="By looking at the radioactive uranium and lead in this tough rock"><![CDATA[By looking at the radioactive uranium and lead in this tough rock,]]></answer>
	</question>
	<question>
		<phrase isaudiomp3="1" mp3="AUDIO_REPOS/32.0.mp3"></phrase>
		<question isaudiomp3="1" rationale="0" picture="images/question32.jpg" mp3="AUDIO_REPOS/2061-31.mp3" exercise_type="" questionmode="" choicemode="" answerbankid="" answerbankmode="" rationalemode="" playonload="" mp3speed="" ttsspeed="" passage="1" show_passage="" show_passage_audioplayer="" passage_audio_type="" showvideo="" video="" enable_audio_recorder="" recorder_mode=""><![CDATA[By looking at the radioactive uranium and lead in this tough rock,]]></question>
		<saythis><![CDATA[By looking at the radioactive uranium and lead in this tough rock,]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-31.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/right.mp3" rationaleimage="images/rationale/32.1.jpg" rationale="Right" value="1" choicesay="By looking at the radioactive uranium and lead in this tough rock"><![CDATA[By looking at the radioactive uranium and lead in this tough rock,]]></answer>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-32.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/tryagain.mp3" rationaleimage="images/rationale/32.1.jpg" rationale="Try again" value="0" choicesay="the scientists found that it formed sometime around 187 million years ago This proved that the baddeleyites were young"><![CDATA[the scientists found that it formed sometime around 187 million years ago. This proved that the baddeleyites were young.]]></answer>
	</question>
	<question>
		<phrase isaudiomp3="1" mp3="AUDIO_REPOS/33.0.mp3"></phrase>
		<question isaudiomp3="1" rationale="0" picture="images/question33.jpg" mp3="AUDIO_REPOS/2061-32.mp3" exercise_type="" questionmode="" choicemode="" answerbankid="" answerbankmode="" rationalemode="" playonload="" mp3speed="" ttsspeed="" passage="1" show_passage="" show_passage_audioplayer="" passage_audio_type="" showvideo="" video="" enable_audio_recorder="" recorder_mode=""><![CDATA[the scientists found that it formed sometime around 187 million years ago. This proved that the baddeleyites were young.]]></question>
		<saythis><![CDATA[the scientists found that it formed sometime around 187 million years ago. This proved that the baddeleyites were young.]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-32.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/right.mp3" rationaleimage="images/rationale/33.1.jpg" rationale="Right" value="1" choicesay="the scientists found that it formed sometime around 187 million years ago This proved that the baddeleyites were young"><![CDATA[the scientists found that it formed sometime around 187 million years ago. This proved that the baddeleyites were young.]]></answer>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-33.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/tryagain.mp3" rationaleimage="images/rationale/33.1.jpg" rationale="Try again" value="0" choicesay="The scientists could also see that the meteorite had been damaged"><![CDATA[The scientists could also see that the meteorite had been damaged.]]></answer>
	</question>
	<question>
		<phrase isaudiomp3="1" mp3="AUDIO_REPOS/34.0.mp3"></phrase>
		<question isaudiomp3="1" rationale="0" picture="images/question34.jpg" mp3="AUDIO_REPOS/2061-33.mp3" exercise_type="" questionmode="" choicemode="" answerbankid="" answerbankmode="" rationalemode="" playonload="" mp3speed="" ttsspeed="" passage="1" show_passage="" show_passage_audioplayer="" passage_audio_type="" showvideo="" video="" enable_audio_recorder="" recorder_mode=""><![CDATA[The scientists could also see that the meteorite had been damaged.]]></question>
		<saythis><![CDATA[The scientists could also see that the meteorite had been damaged.]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-33.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/right.mp3" rationaleimage="images/rationale/34.1.jpg" rationale="Right" value="1" choicesay="The scientists could also see that the meteorite had been damaged"><![CDATA[The scientists could also see that the meteorite had been damaged.]]></answer>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-34.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/tryagain.mp3" rationaleimage="images/rationale/34.1.jpg" rationale="Try again" value="0" choicesay="This had been caused by whatever sent it shooting off the Martian surface around 22 million years ago"><![CDATA[This had been caused by whatever sent it shooting off the Martian surface around 22 million years ago.]]></answer>
	</question>
	<question>
		<phrase isaudiomp3="1" mp3="AUDIO_REPOS/35.0.mp3"></phrase>
		<question isaudiomp3="1" rationale="0" picture="images/question35.jpg" mp3="AUDIO_REPOS/2061-34.mp3" exercise_type="" questionmode="" choicemode="" answerbankid="" answerbankmode="" rationalemode="" playonload="" mp3speed="" ttsspeed="" passage="1" show_passage="" show_passage_audioplayer="" passage_audio_type="" showvideo="" video="" enable_audio_recorder="" recorder_mode=""><![CDATA[This had been caused by whatever sent it shooting off the Martian surface around 22 million years ago.]]></question>
		<saythis><![CDATA[This had been caused by whatever sent it shooting off the Martian surface around 22 million years ago.]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-34.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/right.mp3" rationaleimage="images/rationale/35.1.jpg" rationale="Right" value="1" choicesay="This had been caused by whatever sent it shooting off the Martian surface around 22 million years ago"><![CDATA[This had been caused by whatever sent it shooting off the Martian surface around 22 million years ago.]]></answer>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-35.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/tryagain.mp3" rationaleimage="images/rationale/35.1.jpg" rationale="Try again" value="0" choicesay="The shock had muddled up the minerals inside though the chemicals themselves were mostly unchanged"><![CDATA[The shock had muddled up the minerals inside, though the chemicals themselves were mostly unchanged.]]></answer>
	</question>
	<question>
		<phrase isaudiomp3="1" mp3="AUDIO_REPOS/36.0.mp3"></phrase>
		<question isaudiomp3="1" rationale="0" picture="images/question36.jpg" mp3="AUDIO_REPOS/2061-35.mp3" exercise_type="" questionmode="" choicemode="" answerbankid="" answerbankmode="" rationalemode="" playonload="" mp3speed="" ttsspeed="" passage="1" show_passage="" show_passage_audioplayer="" passage_audio_type="" showvideo="" video="" enable_audio_recorder="" recorder_mode=""><![CDATA[The shock had muddled up the minerals inside, though the chemicals themselves were mostly unchanged.]]></question>
		<saythis><![CDATA[The shock had muddled up the minerals inside, though the chemicals themselves were mostly unchanged.]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-35.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/right.mp3" rationaleimage="images/rationale/36.1.jpg" rationale="Right" value="1" choicesay="The shock had muddled up the minerals inside though the chemicals themselves were mostly unchanged"><![CDATA[The shock had muddled up the minerals inside, though the chemicals themselves were mostly unchanged.]]></answer>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-36.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/tryagain.mp3" rationaleimage="images/rationale/36.1.jpg" rationale="Try again" value="0" choicesay="The result was something like shaking up a sealed box of chocolates It looks good on the outside"><![CDATA[The result was something like shaking up a sealed box of chocolates. "It looks good on the outside,]]></answer>
	</question>
	<question>
		<phrase isaudiomp3="1" mp3="AUDIO_REPOS/37.0.mp3"></phrase>
		<question isaudiomp3="1" rationale="0" picture="images/question37.jpg" mp3="AUDIO_REPOS/2061-36.mp3" exercise_type="" questionmode="" choicemode="" answerbankid="" answerbankmode="" rationalemode="" playonload="" mp3speed="" ttsspeed="" passage="1" show_passage="" show_passage_audioplayer="" passage_audio_type="" showvideo="" video="" enable_audio_recorder="" recorder_mode=""><![CDATA[The result was something like shaking up a sealed box of chocolates. "It looks good on the outside,]]></question>
		<saythis><![CDATA[The result was something like shaking up a sealed box of chocolates. "It looks good on the outside,]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-36.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/right.mp3" rationaleimage="images/rationale/37.1.jpg" rationale="Right" value="1" choicesay="The result was something like shaking up a sealed box of chocolates It looks good on the outside"><![CDATA[The result was something like shaking up a sealed box of chocolates. "It looks good on the outside,]]></answer>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-37.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/tryagain.mp3" rationaleimage="images/rationale/37.1.jpg" rationale="Try again" value="0" choicesay="but all the pieces are dislodged on the inside Schmitt said"><![CDATA[but all the pieces are dislodged on the inside," Schmitt said.]]></answer>
	</question>
	<question>
		<phrase isaudiomp3="1" mp3="AUDIO_REPOS/38.0.mp3"></phrase>
		<question isaudiomp3="1" rationale="0" picture="images/question38.jpg" mp3="AUDIO_REPOS/2061-37.mp3" exercise_type="" questionmode="" choicemode="" answerbankid="" answerbankmode="" rationalemode="" playonload="" mp3speed="" ttsspeed="" passage="1" show_passage="" show_passage_audioplayer="" passage_audio_type="" showvideo="" video="" enable_audio_recorder="" recorder_mode=""><![CDATA[but all the pieces are dislodged on the inside," Schmitt said.]]></question>
		<saythis><![CDATA[but all the pieces are dislodged on the inside," Schmitt said.]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-37.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/right.mp3" rationaleimage="images/rationale/38.1.jpg" rationale="Right" value="1" choicesay="but all the pieces are dislodged on the inside Schmitt said"><![CDATA[but all the pieces are dislodged on the inside," Schmitt said.]]></answer>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-38.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/tryagain.mp3" rationaleimage="images/rationale/38.1.jpg" rationale="Try again" value="0" choicesay="The study also shows that the shergottites weren't old rocks Humayun said"><![CDATA[The study also shows that the shergottites weren't old rocks, Humayun said.]]></answer>
	</question>
	<question>
		<phrase isaudiomp3="1" mp3="AUDIO_REPOS/39.0.mp3"></phrase>
		<question isaudiomp3="1" rationale="0" picture="images/question39.jpg" mp3="AUDIO_REPOS/2061-38.mp3" exercise_type="" questionmode="" choicemode="" answerbankid="" answerbankmode="" rationalemode="" playonload="" mp3speed="" ttsspeed="" passage="1" show_passage="" show_passage_audioplayer="" passage_audio_type="" showvideo="" video="" enable_audio_recorder="" recorder_mode=""><![CDATA[The study also shows that the shergottites weren't old rocks, Humayun said.]]></question>
		<saythis><![CDATA[The study also shows that the shergottites weren't old rocks, Humayun said.]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-38.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/right.mp3" rationaleimage="images/rationale/39.1.jpg" rationale="Right" value="1" choicesay="The study also shows that the shergottites weren't old rocks Humayun said"><![CDATA[The study also shows that the shergottites weren't old rocks, Humayun said.]]></answer>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-39.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/tryagain.mp3" rationaleimage="images/rationale/39.1.jpg" rationale="Try again" value="0" choicesay="But that was what he had expected If they had found that it was 4 billion years old"><![CDATA[But that was what he had expected. "If they had found that it was 4 billion years old,]]></answer>
	</question>
	<question>
		<phrase isaudiomp3="1" mp3="AUDIO_REPOS/40.0.mp3"></phrase>
		<question isaudiomp3="1" rationale="0" picture="images/question40.jpg" mp3="AUDIO_REPOS/2061-39.mp3" exercise_type="" questionmode="" choicemode="" answerbankid="" answerbankmode="" rationalemode="" playonload="" mp3speed="" ttsspeed="" passage="1" show_passage="" show_passage_audioplayer="" passage_audio_type="" showvideo="" video="" enable_audio_recorder="" recorder_mode=""><![CDATA[But that was what he had expected. "If they had found that it was 4 billion years old,]]></question>
		<saythis><![CDATA[But that was what he had expected. "If they had found that it was 4 billion years old,]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-39.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/right.mp3" rationaleimage="images/rationale/40.1.jpg" rationale="Right" value="1" choicesay="But that was what he had expected If they had found that it was 4 billion years old"><![CDATA[But that was what he had expected. "If they had found that it was 4 billion years old,]]></answer>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-40.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/tryagain.mp3" rationaleimage="images/rationale/40.1.jpg" rationale="Try again" value="0" choicesay="I would eat my hat"><![CDATA[I would eat my hat."]]></answer>
	</question>
	<question>
		<phrase isaudiomp3="1" mp3="AUDIO_REPOS/41.0.mp3"></phrase>
		<question isaudiomp3="1" rationale="0" picture="images/question41.jpg" mp3="AUDIO_REPOS/2061-40.mp3" exercise_type="" questionmode="" choicemode="" answerbankid="" answerbankmode="" rationalemode="" playonload="" mp3speed="" ttsspeed="" passage="1" show_passage="" show_passage_audioplayer="" passage_audio_type="" showvideo="" video="" enable_audio_recorder="" recorder_mode=""><![CDATA[I would eat my hat."]]></question>
		<saythis><![CDATA[I would eat my hat."]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-40.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/right.mp3" rationaleimage="images/rationale/41.1.jpg" rationale="Right" value="1" choicesay="I would eat my hat"><![CDATA[I would eat my hat."]]></answer>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-41.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/tryagain.mp3" rationaleimage="images/rationale/41.1.jpg" rationale="Try again" value="0" choicesay="The researchers plan to study other Martian meteorites Their hope is that they will discover new information about our neighbor"><![CDATA[The researchers plan to study other Martian meteorites. Their hope is that they will discover new information about our neighbor,]]></answer>
	</question>
	<question>
		<phrase isaudiomp3="1" mp3="AUDIO_REPOS/42.0.mp3"></phrase>
		<question isaudiomp3="1" rationale="0" picture="images/question42.jpg" mp3="AUDIO_REPOS/2061-41.mp3" exercise_type="" questionmode="" choicemode="" answerbankid="" answerbankmode="" rationalemode="" playonload="" mp3speed="" ttsspeed="" passage="1" show_passage="" show_passage_audioplayer="" passage_audio_type="" showvideo="" video="" enable_audio_recorder="" recorder_mode=""><![CDATA[The researchers plan to study other Martian meteorites. Their hope is that they will discover new information about our neighbor,]]></question>
		<saythis><![CDATA[The researchers plan to study other Martian meteorites. Their hope is that they will discover new information about our neighbor,]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-41.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/right.mp3" rationaleimage="images/rationale/42.1.jpg" rationale="Right" value="1" choicesay="The researchers plan to study other Martian meteorites Their hope is that they will discover new information about our neighbor"><![CDATA[The researchers plan to study other Martian meteorites. Their hope is that they will discover new information about our neighbor,]]></answer>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-42.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/tryagain.mp3" rationaleimage="images/rationale/42.1.jpg" rationale="Try again" value="0" choicesay="the Red Planet"><![CDATA[the Red Planet.]]></answer>
	</question>
	<question>
		<phrase isaudiomp3="1" mp3="AUDIO_REPOS/43.0.mp3"></phrase>
		<question isaudiomp3="1" rationale="0" picture="images/question43.jpg" mp3="AUDIO_REPOS/2061-42.mp3" exercise_type="" questionmode="" choicemode="" answerbankid="" answerbankmode="" rationalemode="" playonload="" mp3speed="" ttsspeed="" passage="1" show_passage="" show_passage_audioplayer="" passage_audio_type="" showvideo="" video="" enable_audio_recorder="" recorder_mode=""><![CDATA[the Red Planet.]]></question>
		<saythis><![CDATA[the Red Planet.]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2061-42.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/right.mp3" rationaleimage="images/rationale/43.1.jpg" rationale="Right" value="1" choicesay="the Red Planet"><![CDATA[the Red Planet.]]></answer>
	</question>
</catalog>