<?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/1.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 inspect its rocks by hand.]]></question>
		<saythis><![CDATA[LOS ANGELES     Scientists who study planets dream of sending a geologist to Mars to inspect its rocks by hand.]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/1.1.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/correct.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 inspect its rocks by hand "><![CDATA[LOS ANGELES  -  Scientists who study planets dream of sending a geologist to Mars to inspect its rocks by hand.]]></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/2.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[Until then, they have to settle for examining meteorites  -  chunks of the Red Planet that land on Earth after hurtling through space.]]></question>
		<saythis><![CDATA[Until then, they have to settle for examining meteorites     chunks of the Red Planet that land on Earth after hurtling through space.]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/2.1.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/correct.mp3" rationaleimage="images/rationale/2.1.jpg" rationale="Right" value="1" choicesay="Until then they have to settle for examining meteorites   chunks of the Red Planet that land on Earth after hurtling through space "><![CDATA[Until then, they have to settle for examining meteorites  -  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/3.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[Though a little banged up after their fall through the atmosphere, these meteorites provide a lot of information.]]></question>
		<saythis><![CDATA[Though a little banged up after their fall through the atmosphere, these meteorites provide a lot of information.]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/3.1.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/correct.mp3" rationaleimage="images/rationale/3.1.jpg" rationale="Right" value="1" choicesay="Though a little banged up after their fall through the atmosphere these meteorites provide a lot of information "><![CDATA[Though a little banged up after their fall through the atmosphere, these meteorites provide a lot of information.]]></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/4.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 interpret what they see when they can't agree on how old a rock is.]]></question>
		<saythis><![CDATA[But it can be hard for geologists to interpret 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/4.1.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/correct.mp3" rationaleimage="images/rationale/4.1.jpg" rationale="Right" value="1" choicesay="But it can be hard for geologists to interpret what they see when they can't agree on how old a rock is "><![CDATA[But it can be hard for geologists to interpret what they see when they can't agree on how old a rock is.]]></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/5.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 scientists disagree by quite a bit  -  up to 4 billion years  -  for certain rocks.]]></question>
		<saythis><![CDATA[And scientists disagree by quite a bit     up to 4 billion years     for certain rocks.]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/5.1.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/correct.mp3" rationaleimage="images/rationale/5.1.jpg" rationale="Right" value="1" choicesay="And scientists disagree by quite a bit   up to 4 billion years   for certain rocks "><![CDATA[And scientists disagree by quite a bit  -  up to 4 billion years  -  for certain rocks.]]></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/6.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.]]></question>
		<saythis><![CDATA[Mars itself isn't much older than 4 billion years.]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/6.1.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/correct.mp3" rationaleimage="images/rationale/6.1.jpg" rationale="Right" value="1" choicesay="Mars itself isn't much older than 4 billion years "><![CDATA[Mars itself isn't much older than 4 billion years.]]></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/7.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[So the question is: Do these rocks tell the beginning, or the end, of Mars' story?]]></question>
		<saythis><![CDATA[So the question is: Do these rocks tell the beginning, or the end, of Mars' story?]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/7.1.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/correct.mp3" rationaleimage="images/rationale/7.1.jpg" rationale="Right" value="1" choicesay="So the question is  Do these rocks tell the beginning or the end of Mars' story"><![CDATA[So the question is: Do these rocks tell the beginning, or the end, of Mars' story?]]></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/8.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, an international team of scientists sought to sort this out for a particular group of meteorites known as shergottites.]]></question>
		<saythis><![CDATA[Recently, an international team of scientists sought to sort this out for a particular group of meteorites known as shergottites.]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/8.1.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/correct.mp3" rationaleimage="images/rationale/8.1.jpg" rationale="Right" value="1" choicesay="Recently an international team of scientists sought to sort this out for a particular group of meteorites known as shergottites "><![CDATA[Recently, an international team of scientists sought to sort this out for a particular group of meteorites known as shergottites.]]></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/9.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[Young, As Martian Rocks Go]]></question>
		<saythis><![CDATA[Young, As Martian Rocks Go]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/9.1.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/correct.mp3" rationaleimage="images/rationale/9.1.jpg" rationale="Right" value="1" choicesay="Young As Martian Rocks Go"><![CDATA[Young, As Martian Rocks Go]]></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/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[Martian space rocks tend to be very old, but shergottites are generally thought to be remarkably young.]]></question>
		<saythis><![CDATA[Martian space rocks tend to be very old, but shergottites are generally thought to be remarkably young.]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/10.1.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/correct.mp3" rationaleimage="images/rationale/10.1.jpg" rationale="Right" value="1" choicesay="Martian space rocks tend to be very old but shergottites are generally thought to be remarkably young "><![CDATA[Martian space rocks tend to be very old, but shergottites are generally thought to be remarkably young.]]></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/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[Most scientists believe they were formed as a result of volcanic activity about 150 to 250 million years ago.]]></question>
		<saythis><![CDATA[Most scientists believe they were formed as a result of volcanic activity about 150 to 250 million years ago.]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/11.1.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/correct.mp3" rationaleimage="images/rationale/11.1.jpg" rationale="Right" value="1" choicesay="Most scientists believe they were formed as a result of volcanic activity about 150 to 250 million dollar years ago "><![CDATA[Most scientists believe they were formed as a result of volcanic activity about 150 to 250 million years ago.]]></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/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[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/12.1.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/correct.mp3" rationaleimage="images/rationale/12.1.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>
	</question>
	<question>
		<phrase isaudiomp3="1" mp3="AUDIO_REPOS/13.0.mp3"></phrase>
		<question isaudiomp3="1" rationale="0" picture="images/question13.jpg" mp3="AUDIO_REPOS/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[If so, shergottites are a sign that Mars might have been geologically active fairly recently.]]></question>
		<saythis><![CDATA[If so, shergottites are a sign that Mars might have been geologically active fairly recently.]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/13.1.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/correct.mp3" rationaleimage="images/rationale/13.1.jpg" rationale="Right" value="1" choicesay="If so shergottites are a sign that Mars might have been geologically active fairly recently "><![CDATA[If so, shergottites are a sign that Mars might have been geologically active fairly recently.]]></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/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[That in turn means it might still have been friendly to some form of life, said planetary geochemist Munir Humayun.]]></question>
		<saythis><![CDATA[That in turn means it might still have been friendly to some form of life, said planetary geochemist Munir Humayun.]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/14.1.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/correct.mp3" rationaleimage="images/rationale/14.1.jpg" rationale="Right" value="1" choicesay="That in turn means it might still have been friendly to some form of life said planetary geochemist Munir Humayun "><![CDATA[That in turn means it might still have been friendly to some form of life, said planetary geochemist Munir Humayun.]]></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/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[But some scientists have estimated that shergottites are actually about 4 billion years old.]]></question>
		<saythis><![CDATA[But some scientists have estimated that shergottites are actually about 4 billion years old.]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/15.1.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/correct.mp3" rationaleimage="images/rationale/15.1.jpg" rationale="Right" value="1" choicesay="But some scientists have estimated that shergottites are actually about 4 billion years old "><![CDATA[But some scientists have estimated that shergottites are actually about 4 billion years old.]]></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/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 this were true, scientists would have to change the way they think about Mars' history.]]></question>
		<saythis><![CDATA[If this were true, scientists would have to change the way they think about Mars' history.]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/16.1.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/correct.mp3" rationaleimage="images/rationale/16.1.jpg" rationale="Right" value="1" choicesay="If this were true scientists would have to change the way they think about Mars' history "><![CDATA[If this were true, scientists would have to change the way they think about Mars' history.]]></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/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["Most of us understand that if there is ...]]></question>
		<saythis><![CDATA["Most of us understand that if there is ...]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/17.1.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/correct.mp3" rationaleimage="images/rationale/17.1.jpg" rationale="Right" value="1" choicesay="Most of us understand that if there is    "><![CDATA["Most of us understand that if there is ...]]></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/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[life on Mars, it's not going to be roaming on the surface. ...]]></question>
		<saythis><![CDATA[life on Mars, it's not going to be roaming on the surface. ...]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/18.1.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/correct.mp3" rationaleimage="images/rationale/18.1.jpg" rationale="Right" value="1" choicesay="life on Mars it's not going to be roaming on the surface     "><![CDATA[life on Mars, it's not going to be roaming on the surface. ...]]></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/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[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/19.1.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/correct.mp3" rationaleimage="images/rationale/19.1.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>
	</question>
	<question>
		<phrase isaudiomp3="1" mp3="AUDIO_REPOS/20.0.mp3"></phrase>
		<question isaudiomp3="1" rationale="0" picture="images/question20.jpg" mp3="AUDIO_REPOS/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[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/20.1.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/correct.mp3" rationaleimage="images/rationale/20.1.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>
	</question>
	<question>
		<phrase isaudiomp3="1" mp3="AUDIO_REPOS/21.0.mp3"></phrase>
		<question isaudiomp3="1" rationale="0" picture="images/question21.jpg" mp3="AUDIO_REPOS/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[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/21.1.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/correct.mp3" rationaleimage="images/rationale/21.1.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>
	</question>
	<question>
		<phrase isaudiomp3="1" mp3="AUDIO_REPOS/22.0.mp3"></phrase>
		<question isaudiomp3="1" rationale="0" picture="images/question22.jpg" mp3="AUDIO_REPOS/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[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/22.1.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/correct.mp3" rationaleimage="images/rationale/22.1.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>
	</question>
	<question>
		<phrase isaudiomp3="1" mp3="AUDIO_REPOS/23.0.mp3"></phrase>
		<question isaudiomp3="1" rationale="0" picture="images/question23.jpg" mp3="AUDIO_REPOS/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[They looked at very tiny deposits within it called baddeleyites.]]></question>
		<saythis><![CDATA[They looked at very tiny deposits within it called baddeleyites.]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/23.1.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/correct.mp3" rationaleimage="images/rationale/23.1.jpg" rationale="Right" value="1" choicesay="They looked at very tiny deposits within it called baddeleyites "><![CDATA[They looked at very tiny deposits within it called baddeleyites.]]></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/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[These tough, zirconium-rich minerals are "10 times smaller than the diameter of a human hair," said geochemist Axel Schmitt.]]></question>
		<saythis><![CDATA[These tough, 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/24.1.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/correct.mp3" rationaleimage="images/rationale/24.1.jpg" rationale="Right" value="1" choicesay="These tough zirconium rich minerals are 10 times smaller than the diameter of a human hair said geochemist Axel Schmitt "><![CDATA[These tough, 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/25.0.mp3"></phrase>
		<question isaudiomp3="1" rationale="0" picture="images/question25.jpg" mp3="AUDIO_REPOS/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[Rugged Microscopic Minerals]]></question>
		<saythis><![CDATA[Rugged Microscopic Minerals]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/25.1.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/correct.mp3" rationaleimage="images/rationale/25.1.jpg" rationale="Right" value="1" choicesay="Rugged Microscopic Minerals"><![CDATA[Rugged Microscopic Minerals]]></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/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[Researchers generally measure certain radioactive elements in rocks to figure out how long a rock has been around.]]></question>
		<saythis><![CDATA[Researchers generally measure certain radioactive elements in rocks to figure out how long a rock has been around.]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/26.1.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/correct.mp3" rationaleimage="images/rationale/26.1.jpg" rationale="Right" value="1" choicesay="Researchers generally measure certain radioactive elements in rocks to figure out how long a rock has been around "><![CDATA[Researchers generally measure certain radioactive elements in rocks to figure out how long a rock has been around.]]></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/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[But when the meteorites slam into Earth, that melts the rock down and can erase the evidence.]]></question>
		<saythis><![CDATA[But when the meteorites slam into Earth, that melts the rock down and can erase the evidence.]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/27.1.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/correct.mp3" rationaleimage="images/rationale/27.1.jpg" rationale="Right" value="1" choicesay="But when the meteorites slam into Earth that melts the rock down and can erase the evidence "><![CDATA[But when the meteorites slam into Earth, that melts the rock down and can erase the evidence.]]></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/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[That's why scientists picked the tiny baddeleyites: Once they form, they are durable little minerals.]]></question>
		<saythis><![CDATA[That's why scientists picked the tiny baddeleyites: Once they form, they are durable little minerals.]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/28.1.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/correct.mp3" rationaleimage="images/rationale/28.1.jpg" rationale="Right" value="1" choicesay="That's why scientists picked the tiny baddeleyites  Once they form they are durable little minerals "><![CDATA[That's why scientists picked the tiny baddeleyites: Once they form, they are durable little minerals.]]></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/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[It's not easy to melt them down.]]></question>
		<saythis><![CDATA[It's not easy to melt them down.]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/29.1.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/correct.mp3" rationaleimage="images/rationale/29.1.jpg" rationale="Right" value="1" choicesay="It's not easy to melt them down "><![CDATA[It's not easy to melt them down.]]></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/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[By looking at the radioactive uranium and lead in this tough rock, the scientists found that it formed sometime around 187 million years ago.]]></question>
		<saythis><![CDATA[By looking at the radioactive uranium and lead in this tough rock, the scientists found that it formed sometime around 187 million years ago.]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/30.1.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/correct.mp3" rationaleimage="images/rationale/30.1.jpg" rationale="Right" value="1" choicesay="By looking at the radioactive uranium and lead in this tough rock the scientists found that it formed sometime around 187 million dollar years ago "><![CDATA[By looking at the radioactive uranium and lead in this tough rock, the scientists found that it formed sometime around 187 million years ago.]]></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/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[This proved that the baddeleyites were young.]]></question>
		<saythis><![CDATA[This proved that the baddeleyites were young.]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/31.1.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/correct.mp3" rationaleimage="images/rationale/31.1.jpg" rationale="Right" value="1" choicesay="This proved that the baddeleyites were young "><![CDATA[This proved that the baddeleyites were young.]]></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/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 could also see evidence of the damage done to the meteorite by whatever event sent it shooting off the Martian surface around 22 million years ago.]]></question>
		<saythis><![CDATA[The scientists could also see evidence of the damage done to the meteorite by whatever event sent it shooting off the Martian surface around 22 million years ago.]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/32.1.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/correct.mp3" rationaleimage="images/rationale/32.1.jpg" rationale="Right" value="1" choicesay="The scientists could also see evidence of the damage done to the meteorite by whatever event sent it shooting off the Martian surface around 22 million dollar years ago "><![CDATA[The scientists could also see evidence of the damage done to the meteorite by whatever event sent it shooting off the Martian surface around 22 million years ago.]]></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/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 shock had muddled up the mineral structure inside, though the chemicals themselves were mostly unchanged.]]></question>
		<saythis><![CDATA[The shock had muddled up the mineral structure inside, though the chemicals themselves were mostly unchanged.]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/33.1.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/correct.mp3" rationaleimage="images/rationale/33.1.jpg" rationale="Right" value="1" choicesay="The shock had muddled up the mineral structure inside though the chemicals themselves were mostly unchanged "><![CDATA[The shock had muddled up the mineral structure inside, though the chemicals themselves were mostly unchanged.]]></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/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[The result was something like shaking up a sealed gift box of chocolates.]]></question>
		<saythis><![CDATA[The result was something like shaking up a sealed gift box of chocolates.]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/34.1.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/correct.mp3" rationaleimage="images/rationale/34.1.jpg" rationale="Right" value="1" choicesay="The result was something like shaking up a sealed gift box of chocolates "><![CDATA[The result was something like shaking up a sealed gift box of chocolates.]]></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/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["It looks good on the outside, but all the pieces are dislodged on the inside," Schmitt said.]]></question>
		<saythis><![CDATA["It looks good on the outside, but all the pieces are dislodged on the inside," Schmitt said.]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/35.1.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/correct.mp3" rationaleimage="images/rationale/35.1.jpg" rationale="Right" value="1" choicesay="It looks good on the outside but all the pieces are dislodged on the inside Schmitt said "><![CDATA["It looks good on the outside, but all the pieces are dislodged on the inside," Schmitt said.]]></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/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 study further shows that the shergottites weren't old rocks, Humayun said.]]></question>
		<saythis><![CDATA[The study further shows that the shergottites weren't old rocks, Humayun said.]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/36.1.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/correct.mp3" rationaleimage="images/rationale/36.1.jpg" rationale="Right" value="1" choicesay="The study further shows that the shergottites weren't old rocks Humayun said "><![CDATA[The study further shows that the shergottites weren't old rocks, Humayun said.]]></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/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 that was what he had expected.]]></question>
		<saythis><![CDATA[But that was what he had expected.]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/37.1.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/correct.mp3" rationaleimage="images/rationale/37.1.jpg" rationale="Right" value="1" choicesay="But that was what he had expected "><![CDATA[But that was what he had expected.]]></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/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["If they had found that it was 4 billion years old, I would eat my hat."]]></question>
		<saythis><![CDATA["If they had found that it was 4 billion years old, I would eat my hat."]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/38.1.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/correct.mp3" rationaleimage="images/rationale/38.1.jpg" rationale="Right" value="1" choicesay="If they had found that it was 4 billion years old I would eat my hat "><![CDATA["If they had found that it was 4 billion years old, I would eat my hat."]]></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/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[The researchers say they can use their method of dating these rocks to study other Martian meteorites.]]></question>
		<saythis><![CDATA[The researchers say they can use their method of dating these rocks to study other Martian meteorites.]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/39.1.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/correct.mp3" rationaleimage="images/rationale/39.1.jpg" rationale="Right" value="1" choicesay="The researchers say they can use their method of dating these rocks to study other Martian meteorites "><![CDATA[The researchers say they can use their method of dating these rocks to study other Martian meteorites.]]></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/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[Their hope is that they will discover new information about our neighbor, the Red Planet.]]></question>
		<saythis><![CDATA[Their hope is that they will discover new information about our neighbor, the Red Planet.]]></saythis>
		<answer isaudiomp3="1" picture="images/c1.jpg" mp3="AUDIO_REPOS/40.1.mp3" isrationalemp3="1" rationalemp3="AUDIO_REPOS/correct.mp3" rationaleimage="images/rationale/40.1.jpg" rationale="Right" value="1" choicesay="Their hope is that they will discover new information about our neighbor the Red Planet "><![CDATA[Their hope is that they will discover new information about our neighbor, the Red Planet.]]></answer>
	</question>
</catalog>