{"introPage":{"showIntroPage":false,"startButtonText":"Start Quiz","introduction":""},"progressType":"dots","passPercentage":50,"questions":[{"params":{"media":{"disableImageZooming":false,"type":{"params":{"decorative":false,"contentName":"Image","expandImage":"Expand Image","minimizeImage":"Minimize Image","file":{"path":"images\/file-69cbfcca9447d.png","mime":"image\/png","copyright":{"license":"U"},"width":880,"height":1202},"alt":"a sediment core showing different sediment and other layers that change from top to bottom"},"library":"H5P.Image 1.1","metadata":{"contentType":"Image","license":"CC BY-NC-SA","title":"Sediment Core","authors":[{"name":"62b26f53-a9ac-4f1c-9d9a-e9bb4c48e88f","role":"Author"}],"licenseExtras":"Modified from an exercise by Kim Kastens, Lamont-Dougherty Earth Observatory. Image generated using Google Gemini.","licenseVersion":"4.0"},"subContentId":"9abb8096-1ade-4abb-89f7-54d28f891d48"}},"answers":[{"correct":false,"tipsAndFeedback":{"tip":"","chosenFeedback":"","notChosenFeedback":""},"text":"

Unit 1<\/div>\n"},{"correct":false,"tipsAndFeedback":{"tip":"","chosenFeedback":"","notChosenFeedback":""},"text":"

Unit 2<\/div>\n"},{"correct":false,"tipsAndFeedback":{"tip":"","chosenFeedback":"","notChosenFeedback":""},"text":"

Unit 3<\/div>\n"},{"correct":false,"tipsAndFeedback":{"tip":"","chosenFeedback":"","notChosenFeedback":""},"text":"

Unit 4<\/div>\n"},{"correct":true,"tipsAndFeedback":{"tip":"","chosenFeedback":"

Excellent! The layers at the top of the core represents layers that have recently formed. The deeper you get into the core, the older the layers are.<\/div>\n","notChosenFeedback":""},"text":"

Unit 5<\/div>\n"}],"overallFeedback":[{"from":0,"to":100}],"behaviour":{"enableRetry":true,"enableSolutionsButton":true,"enableCheckButton":true,"type":"auto","singlePoint":false,"randomAnswers":false,"showSolutionsRequiresInput":true,"confirmCheckDialog":false,"confirmRetryDialog":false,"autoCheck":false,"passPercentage":100,"showScorePoints":true},"UI":{"checkAnswerButton":"Check","submitAnswerButton":"Submit","showSolutionButton":"Show solution","tryAgainButton":"Retry","tipsLabel":"Show tip","scoreBarLabel":"You got :num out of :total points","tipAvailable":"Tip available","feedbackAvailable":"Feedback available","readFeedback":"Read feedback","wrongAnswer":"Wrong answer","correctAnswer":"Correct answer","shouldCheck":"Should have been checked","shouldNotCheck":"Should not have been checked","noInput":"Please answer before viewing the solution","a11yCheck":"Check the answers. The responses will be marked as correct, incorrect, or unanswered.","a11yShowSolution":"Show the solution. The task will be marked with its correct solution.","a11yRetry":"Retry the task. Reset all responses and start the task over again."},"confirmCheck":{"header":"Finish ?","body":"Are you sure you wish to finish ?","cancelLabel":"Cancel","confirmLabel":"Finish"},"confirmRetry":{"header":"Retry ?","body":"Are you sure you wish to retry ?","cancelLabel":"Cancel","confirmLabel":"Confirm"},"question":"

Which unit is oldest?<\/p>\n"},"library":"H5P.MultiChoice 1.16","metadata":{"contentType":"Multiple Choice","license":"U","title":"Question 1"},"subContentId":"be2ea284-f9fd-4454-9f2d-90ef046d9026"},{"params":{"media":{"disableImageZooming":false,"type":{"params":{"decorative":false,"contentName":"Image","expandImage":"Expand Image","minimizeImage":"Minimize Image","file":{"path":"images\/file-69cbfcf61d6c6.png","mime":"image\/png","copyright":{"license":"U"},"width":880,"height":1202},"alt":"a sediment core showing different sediment and other layers that change from top to bottom"},"library":"H5P.Image 1.1","metadata":{"contentType":"Image","license":"CC BY-NC-SA","title":"Sediment Core","authors":[{"name":"62b26f53-a9ac-4f1c-9d9a-e9bb4c48e88f","role":"Author"}],"licenseVersion":"4.0","licenseExtras":"Modified from an exercise by Kim Kastens, Lamont-Dougherty Earth Observatory. Image generated using Google Gemini."},"subContentId":"37f24ee4-9458-40ed-8933-68a273f480c6"}},"answers":[{"correct":false,"tipsAndFeedback":{"tip":"","chosenFeedback":"","notChosenFeedback":""},"text":"

Unit 1<\/div>\n"},{"correct":false,"tipsAndFeedback":{"tip":"","chosenFeedback":"","notChosenFeedback":""},"text":"

Unit 2<\/div>\n"},{"correct":false,"tipsAndFeedback":{"tip":"","chosenFeedback":"","notChosenFeedback":""},"text":"

Unit 3<\/div>\n"},{"correct":false,"tipsAndFeedback":{"tip":"","chosenFeedback":"","notChosenFeedback":""},"text":"

Unit 4<\/div>\n"},{"correct":true,"tipsAndFeedback":{"tip":"","chosenFeedback":"

Good job! Basalt (Unit 5) is the volcanic igneous rock that erupts at mid-ocean ridges to form new oceanic crust. All of the other layers are composed of some form of sediment.<\/div>\n","notChosenFeedback":""},"text":"

Which unit is not a sediment layer?<\/p>\n"},"library":"H5P.MultiChoice 1.16","metadata":{"contentType":"Multiple Choice","license":"U","title":"Question 2"},"subContentId":"a35a710c-374b-40ce-b00b-c7ea60ed31ea"},{"params":{"media":{"disableImageZooming":false,"type":{"params":{"decorative":false,"contentName":"Image","expandImage":"Expand Image","minimizeImage":"Minimize Image","file":{"path":"images\/file-69cc05a9917f8.png","mime":"image\/png","copyright":{"license":"U"},"width":880,"height":1202},"alt":"a sediment core showing different sediment and other layers that change from top to bottom"},"library":"H5P.Image 1.1","metadata":{"contentType":"Image","license":"CC BY-NC-SA","title":"Sediment Core","authors":[{"name":"Rebecca Freeman","role":"Author"}],"licenseExtras":"Modified from an exercise by Kim Kastens, Lamont-Dougherty Earth Observatory. Image generated using Google Gemini.","licenseVersion":"4.0"},"subContentId":"f98dfa0a-8ffe-4998-944d-d0b79034e344"}},"answers":[{"correct":true,"tipsAndFeedback":{"tip":"","chosenFeedback":"

Yes! Basalt forms at mid-ocean ridges as new oceanic crust forms when two oceanic plates diverge.<\/div>\n","notChosenFeedback":""},"text":"

due to underwater volcanic activity at a mid-ocean ridge<\/div>\n"},{"correct":false,"tipsAndFeedback":{"tip":"","chosenFeedback":"","notChosenFeedback":""},"text":"

due to volcanic activity associated with a volcanic arc at a subduction zone<\/div>\n"},{"correct":false,"tipsAndFeedback":{"tip":"","chosenFeedback":"","notChosenFeedback":""},"text":"

due to slow accumulation of shells and skeletons in deep ocean water<\/div>\n"},{"correct":false,"tipsAndFeedback":{"tip":"","chosenFeedback":"","notChosenFeedback":""},"text":"

due to precipitation from seawater near a volcano<\/div>\n"}],"overallFeedback":[{"from":0,"to":100}],"behaviour":{"enableRetry":true,"enableSolutionsButton":true,"enableCheckButton":true,"type":"auto","singlePoint":false,"randomAnswers":true,"showSolutionsRequiresInput":true,"confirmCheckDialog":false,"confirmRetryDialog":false,"autoCheck":false,"passPercentage":100,"showScorePoints":true},"UI":{"checkAnswerButton":"Check","submitAnswerButton":"Submit","showSolutionButton":"Show solution","tryAgainButton":"Retry","tipsLabel":"Show tip","scoreBarLabel":"You got :num out of :total points","tipAvailable":"Tip available","feedbackAvailable":"Feedback available","readFeedback":"Read feedback","wrongAnswer":"Wrong answer","correctAnswer":"Correct answer","shouldCheck":"Should have been checked","shouldNotCheck":"Should not have been checked","noInput":"Please answer before viewing the solution","a11yCheck":"Check the answers. The responses will be marked as correct, incorrect, or unanswered.","a11yShowSolution":"Show the solution. The task will be marked with its correct solution.","a11yRetry":"Retry the task. Reset all responses and start the task over again."},"confirmCheck":{"header":"Finish ?","body":"Are you sure you wish to finish ?","cancelLabel":"Cancel","confirmLabel":"Finish"},"confirmRetry":{"header":"Retry ?","body":"Are you sure you wish to retry ?","cancelLabel":"Cancel","confirmLabel":"Confirm"},"question":"

How did Unit 5 form and where?<\/p>\n"},"library":"H5P.MultiChoice 1.16","metadata":{"contentType":"Multiple Choice","license":"U","title":"Question 3"},"subContentId":"01aa53cb-5d66-4632-889d-b60dd79eb62d"},{"params":{"media":{"type":{"params":{"decorative":false,"contentName":"Image","expandImage":"Expand Image","minimizeImage":"Minimize Image","file":{"path":"images\/file-69cc05e8c5502.png","mime":"image\/png","copyright":{"license":"U"},"width":880,"height":1202},"alt":"a sediment core showing different sediment and other layers that change from top to bottom"},"library":"H5P.Image 1.1","metadata":{"contentType":"Image","license":"CC BY-NC-SA","title":"Sediment Core","authors":[{"name":"Rebecca Freeman","role":"Author"}],"licenseVersion":"4.0","licenseExtras":"Modified from an exercise by Kim Kastens, Lamont-Dougherty Earth Observatory. Image generated using Google Gemini."},"subContentId":"024e430c-8cb4-44d5-92cd-a0dd7c02eaac"},"disableImageZooming":false},"answers":[{"correct":true,"tipsAndFeedback":{"tip":"","chosenFeedback":"

The key here is the volcanic ash. Subduction zones have associated volcanic arcs where volcanoes erupt on land, either on islands or on the edges of continents. Volcanic ash is being carried by the wind and deposited in the nearby ocean.<\/div>\n","notChosenFeedback":""},"text":"

Unit 1<\/div>\n"},{"correct":false,"tipsAndFeedback":{"tip":"","chosenFeedback":"","notChosenFeedback":""},"text":"

Unit 2<\/div>\n"},{"correct":false,"tipsAndFeedback":{"tip":"","chosenFeedback":"","notChosenFeedback":""},"text":"

Unit 3<\/div>\n"},{"correct":false,"tipsAndFeedback":{"tip":"","chosenFeedback":"","notChosenFeedback":""},"text":"

Unit 4<\/div>\n"},{"correct":false,"tipsAndFeedback":{"tip":"","chosenFeedback":"","notChosenFeedback":""},"text":"

Which unit probably represents a time when the seafloor was near a subduction zone?<\/p>\n"},"library":"H5P.MultiChoice 1.16","metadata":{"contentType":"Multiple Choice","license":"U","title":"Question 4"},"subContentId":"5a3b216d-e7d7-456d-aff1-a7e524dc8883"},{"params":{"media":{"type":{"params":{"decorative":false,"contentName":"Image","expandImage":"Expand Image","minimizeImage":"Minimize Image","file":{"path":"images\/file-69cc06a31eabf.png","mime":"image\/png","copyright":{"license":"U"},"width":880,"height":1202},"alt":"a sediment core showing different sediment and other layers that change from top to bottom"},"library":"H5P.Image 1.1","metadata":{"contentType":"Image","license":"U","title":"Untitled Image"},"subContentId":"4f2efe8c-504f-4a42-a5ae-bed18c15122d"},"disableImageZooming":false},"answers":[{"correct":true,"tipsAndFeedback":{"tip":"","chosenFeedback":"

1, 2 and 3 are sediments but the fact that they do not contain hydrogenous sediments tells us that they were deposited in an environment that lacked the hydrothermal vents where these sediments form.<\/div>\n","notChosenFeedback":""},"text":"

Units 1, 2 and 3 formed in a part of the ocean where there were no hydrothermal vents.<\/div>\n"},{"correct":false,"tipsAndFeedback":{"tip":"","chosenFeedback":"","notChosenFeedback":""},"text":"

All of the other units formed in shallow water.<\/div>\n"},{"correct":true,"tipsAndFeedback":{"tip":"","chosenFeedback":"

Correct! Basalt is a volcanic igenous rock and not a form of sediment at all.<\/div>\n","notChosenFeedback":""},"text":"

Unit 5 is not a sediment layer and therefore does not include hydrogenous sediments.<\/div>\n"},{"correct":false,"tipsAndFeedback":{"tip":"","chosenFeedback":"","notChosenFeedback":""},"text":"

The energy level of deposition of the other units was not high ennough to allow hydrogenous sediments to be deposited.<\/div>\n"}],"overallFeedback":[{"from":0,"to":100}],"behaviour":{"enableRetry":true,"enableSolutionsButton":true,"enableCheckButton":true,"type":"auto","singlePoint":false,"randomAnswers":true,"showSolutionsRequiresInput":true,"confirmCheckDialog":false,"confirmRetryDialog":false,"autoCheck":false,"passPercentage":100,"showScorePoints":true},"UI":{"checkAnswerButton":"Check","submitAnswerButton":"Submit","showSolutionButton":"Show solution","tryAgainButton":"Retry","tipsLabel":"Show tip","scoreBarLabel":"You got :num out of :total points","tipAvailable":"Tip available","feedbackAvailable":"Feedback available","readFeedback":"Read feedback","wrongAnswer":"Wrong answer","correctAnswer":"Correct answer","shouldCheck":"Should have been checked","shouldNotCheck":"Should not have been checked","noInput":"Please answer before viewing the solution","a11yCheck":"Check the answers. The responses will be marked as correct, incorrect, or unanswered.","a11yShowSolution":"Show the solution. The task will be marked with its correct solution.","a11yRetry":"Retry the task. Reset all responses and start the task over again."},"confirmCheck":{"header":"Finish ?","body":"Are you sure you wish to finish ?","cancelLabel":"Cancel","confirmLabel":"Finish"},"confirmRetry":{"header":"Retry ?","body":"Are you sure you wish to retry ?","cancelLabel":"Cancel","confirmLabel":"Confirm"},"question":"

Sulfides are hydrogenous sediments that form from hot water. Why would unit 4 contain hydrogenous sediments while units 1, 2, 3 and 5 do not? Choose all that apply.<\/p>\n"},"library":"H5P.MultiChoice 1.16","metadata":{"contentType":"Multiple Choice","license":"U","title":"Question 5"},"subContentId":"1be9febd-c3b2-476c-90e3-310492f691e2"},{"params":{"media":{"type":{"params":{"decorative":false,"contentName":"Image","expandImage":"Expand Image","minimizeImage":"Minimize Image","file":{"path":"images\/file-69cc083f3e24b.png","mime":"image\/png","copyright":{"license":"U"},"width":880,"height":1202},"alt":"a sediment core showing different sediment and other layers that change from top to bottom"},"library":"H5P.Image 1.1","metadata":{"contentType":"Image","license":"U","title":"Untitled Image"},"subContentId":"0f5d30c2-507d-4cd6-a775-5cc317d90b71"},"disableImageZooming":false},"answers":[{"correct":true,"tipsAndFeedback":{"tip":"","chosenFeedback":"

Unit 1 contain coarse lithogenous, terrigeous sediment like sand that washed into the ocean from weathering of rocks on land. Sediment this coarse does not usually get very far from land before it is deposited.<\/div>\n","notChosenFeedback":""},"text":"

Unit 1<\/div>\n"},{"correct":false,"tipsAndFeedback":{"tip":"","chosenFeedback":"","notChosenFeedback":""},"text":"

Unit 2<\/div>\n"},{"correct":false,"tipsAndFeedback":{"tip":"","chosenFeedback":"","notChosenFeedback":""},"text":"

Unit 3<\/div>\n"},{"correct":false,"tipsAndFeedback":{"tip":"","chosenFeedback":"","notChosenFeedback":""},"text":"

Unit 4<\/div>\n"},{"correct":false,"tipsAndFeedback":{"tip":"","chosenFeedback":"","notChosenFeedback":""},"text":"

Which unit probably represents a time when the oceanic plate was fairly close to a continent?<\/p>\n"},"library":"H5P.MultiChoice 1.16","metadata":{"contentType":"Multiple Choice","license":"U","title":"Question 6"},"subContentId":"a0bdaddf-6f95-48dc-8d55-4c56a236a168"},{"params":{"media":{"type":{"params":{"decorative":false,"contentName":"Image","expandImage":"Expand Image","minimizeImage":"Minimize Image","alt":"a sediment core with five layers of different origins"},"library":"H5P.Image 1.1","metadata":{"contentType":"Image","license":"U","title":"Untitled Image"},"subContentId":"43f2f604-ea10-46de-8ca4-0dd3f2259e5e"},"disableImageZooming":false},"taskDescription":"Drag the words into the correct boxes","overallFeedback":[{"from":0,"to":100,"feedback":"Tricky! Clays (unit 2) also are deposited in deep water, but the presence of the volcanic ash tells us that we are near a subduction zone, the deepest part of the ocean."}],"checkAnswer":"Check","submitAnswer":"Submit","tryAgain":"Retry","showSolution":"Show solution","dropZoneIndex":"Drop Zone @index.","empty":"Drop Zone @index is empty.","contains":"Drop Zone @index contains draggable @draggable.","ariaDraggableIndex":"@index of @count draggables.","tipLabel":"Show tip","correctText":"Correct!","incorrectText":"Incorrect!","resetDropTitle":"Reset drop","resetDropDescription":"Are you sure you want to reset this drop zone?","grabbed":"Draggable is grabbed.","cancelledDragging":"Cancelled dragging.","correctAnswer":"Correct answer:","feedbackHeader":"Feedback","behaviour":{"enableRetry":true,"enableSolutionsButton":true,"enableCheckButton":true,"instantFeedback":false},"scoreBarLabel":"You got :num out of :total points","a11yCheck":"Check the answers. The responses will be marked as correct, incorrect, or unanswered.","a11yShowSolution":"Show the solution. The task will be marked with its correct solution.","a11yRetry":"Retry the task. Reset all responses and start the task over again.","textField":"The unit that represents the greatest water depth is *Unit 1* because *the presence of volcanic ash indicates it was near a subduction zone*.","distractors":"*Unit 2* *Unit 3* *Unit 4* *Unit 5* *volcanic activity only happens in deep water* *calcareous ooze (forams) are indicators of deposition in deep water* *because the water is deepest near continents where sand would originate*"},"library":"H5P.DragText 1.10","metadata":{"contentType":"Drag the Words","license":"U","title":"Question 7"},"subContentId":"f8b3f1c8-73a8-46c7-8bf5-98db8cf874b1"},{"params":{"scoreShow":"Check","submit":"Submit","tryAgain":"Retry","scoreExplanation":"Correct answers give +1 point. Incorrect answers give -1 point. The lowest possible score is 0.","question":{"settings":{"size":{"width":620,"height":310},"background":{"path":"images\/background-69cc0dbdd6ad4.png","mime":"image\/png","copyright":{"license":"U"},"width":1408,"height":768}},"task":{"elements":[{"x":1.615508885298869,"y":3.231017770597738,"width":1.778836591276252,"height":1.778836591276252,"dropZones":["0","1","2","3","4"],"type":{"library":"H5P.AdvancedText 1.1","params":{"text":"

1<\/p>\n"},"subContentId":"65dfcd7c-2c21-4b6a-b015-b2fcd850dabe","metadata":{"contentType":"Text","license":"U","title":"Untitled Text"}},"backgroundOpacity":100,"multiple":false},{"x":10.06036217303823,"y":4.024144869215292,"width":1.778836591276252,"height":1.778836591276252,"dropZones":["3","0","1","2","4"],"type":{"library":"H5P.AdvancedText 1.1","params":{"text":"

2<\/p>\n"},"subContentId":"fddf4aee-a455-46ef-bed1-67a209d2a50e","metadata":{"contentType":"Text","license":"U","title":"Untitled Text"}},"backgroundOpacity":100,"multiple":false},{"x":17.77059773828756,"y":3.231017770597738,"width":1.778836591276252,"height":1.778836591276252,"dropZones":["1","0","2","3","4"],"type":{"library":"H5P.AdvancedText 1.1","params":{"text":"

3<\/p>\n"},"subContentId":"c79b6058-f1d9-4620-a7a6-65d9d0b92133","metadata":{"contentType":"Text","license":"U","title":"Untitled Text"}},"backgroundOpacity":100,"multiple":false},{"x":1.615508885298869,"y":19.38610662358643,"width":1.778836591276252,"height":1.778836591276252,"dropZones":["4","0","1","2","3"],"type":{"library":"H5P.AdvancedText 1.1","params":{"text":"

4<\/p>\n"},"subContentId":"87a694f7-9f99-4cd7-b59c-1b689fe4c8d6","metadata":{"contentType":"Text","license":"U","title":"Untitled Text"}},"backgroundOpacity":100,"multiple":false},{"x":9.693053311793214,"y":19.38610662358643,"width":1.778836591276252,"height":1.778836591276252,"dropZones":["4","0","1","2","3"],"type":{"library":"H5P.AdvancedText 1.1","params":{"text":"

5<\/p>\n"},"subContentId":"753062fc-8b29-45da-9b5d-b67331ba0fc5","metadata":{"contentType":"Text","license":"U","title":"Untitled Text"}},"backgroundOpacity":100,"multiple":false}],"dropZones":[{"x":59.77382875605815,"y":32.31017770597738,"width":2.504038772213247,"height":2.499149636510501,"correctElements":["0"],"showLabel":false,"backgroundOpacity":10,"tipsAndFeedback":{"tip":""},"single":true,"autoAlign":true,"label":"

A<\/div>\n"},{"x":37.156704361873985,"y":19.38610662358643,"width":2.504038772213247,"height":2.499149636510501,"correctElements":["3"],"showLabel":false,"backgroundOpacity":10,"tipsAndFeedback":{"tip":""},"single":true,"autoAlign":true,"label":"

B<\/div>\n"},{"x":30.694668820678512,"y":35.54119547657512,"width":2.504038772213247,"height":2.499149636510501,"correctElements":["4"],"showLabel":false,"backgroundOpacity":10,"tipsAndFeedback":{"tip":""},"single":true,"autoAlign":true,"label":"

C<\/div>\n"},{"x":42.003231017770595,"y":32.31017770597738,"width":2.504038772213247,"height":2.499149636510501,"correctElements":["2"],"showLabel":false,"backgroundOpacity":10,"tipsAndFeedback":{"tip":""},"single":true,"autoAlign":true,"label":"

D<\/div>\n"},{"x":51.69628432956381,"y":22.617124394184167,"width":2.504038772213247,"height":2.499149636510501,"correctElements":["1"],"showLabel":false,"backgroundOpacity":10,"tipsAndFeedback":{"tip":""},"single":true,"autoAlign":true,"label":"

E<\/div>\n"}]}},"overallFeedback":[{"from":0,"to":100,"feedback":"With this one core we can track the movement of the plate from where it formed at a mid-ocean ridge to where it is eventually subducted."}],"behaviour":{"enableRetry":true,"enableCheckButton":true,"singlePoint":false,"applyPenalties":true,"enableScoreExplanation":true,"dropZoneHighlighting":"always","autoAlignSpacing":2,"enableFullScreen":false,"showScorePoints":true,"showTitle":true},"grabbablePrefix":"Grabbable {num} of {total}.","grabbableSuffix":"Placed in dropzone {num}.","dropzonePrefix":"Dropzone {num} of {total}.","noDropzone":"No dropzone.","tipLabel":"Show tip.","tipAvailable":"Tip available","correctAnswer":"Correct answer","wrongAnswer":"Wrong answer","feedbackHeader":"Feedback","scoreBarLabel":"You got :num out of :total points","scoreExplanationButtonLabel":"Show score explanation","a11yCheck":"Check the answers. The responses will be marked as correct, incorrect, or unanswered.","a11yRetry":"Retry the task. Reset all responses and start the task over again.","localize":{"fullscreen":"Fullscreen","exitFullscreen":"Exit fullscreen"}},"library":"H5P.DragQuestion 1.14","metadata":{"contentType":"Drag and Drop","license":"U","title":"Question 8: Drag the units (1-5) to the place on the seafloor where they most likely formed"},"subContentId":"faff15db-89b3-44a2-985d-d3cb6ba71fb1"},{"params":{"media":{"disableImageZooming":false},"answers":[{"correct":true,"tipsAndFeedback":{"tip":"","chosenFeedback":"

Good job! We can track the plate movement from formation to eventually subduction. While sea level and climate do change, it is not likely that they would do that so dramatically, and of course have nothing to do with basaltic volcanic activity at mid-ocean ridges.<\/div>\n","notChosenFeedback":""},"text":"

This place in the ocean was on an oceanic plate that formed at a mid-ocean ridge and was spreading towards a subduction zone.<\/div>\n"},{"correct":false,"tipsAndFeedback":{"tip":"","chosenFeedback":"","notChosenFeedback":""},"text":"

The abrupt changes in environment indicate that global sea level was frequently changing.<\/div>\n"},{"correct":false,"tipsAndFeedback":{"tip":"","chosenFeedback":"","notChosenFeedback":""},"text":"

During the time that these layers accumulated global climate change must have dramatically affected the ocean.<\/div>\n"}],"overallFeedback":[{"from":0,"to":100}],"behaviour":{"enableRetry":true,"enableSolutionsButton":true,"enableCheckButton":true,"type":"auto","singlePoint":false,"randomAnswers":true,"showSolutionsRequiresInput":true,"confirmCheckDialog":false,"confirmRetryDialog":false,"autoCheck":false,"passPercentage":100,"showScorePoints":true},"UI":{"checkAnswerButton":"Check","submitAnswerButton":"Submit","showSolutionButton":"Show solution","tryAgainButton":"Retry","tipsLabel":"Show tip","scoreBarLabel":"You got :num out of :total points","tipAvailable":"Tip available","feedbackAvailable":"Feedback available","readFeedback":"Read feedback","wrongAnswer":"Wrong answer","correctAnswer":"Correct answer","shouldCheck":"Should have been checked","shouldNotCheck":"Should not have been checked","noInput":"Please answer before viewing the solution","a11yCheck":"Check the answers. The responses will be marked as correct, incorrect, or unanswered.","a11yShowSolution":"Show the solution. The task will be marked with its correct solution.","a11yRetry":"Retry the task. Reset all responses and start the task over again."},"confirmCheck":{"header":"Finish ?","body":"Are you sure you wish to finish ?","cancelLabel":"Cancel","confirmLabel":"Finish"},"confirmRetry":{"header":"Retry ?","body":"Are you sure you wish to retry ?","cancelLabel":"Cancel","confirmLabel":"Confirm"},"question":"

What is the most likely explanation for why this seafloor core demonstrates so much change from bottom (oldest) to top (youngest)?<\/p>\n"},"library":"H5P.MultiChoice 1.16","metadata":{"contentType":"Multiple Choice","license":"U","title":"Question 9"},"subContentId":"39fcec98-5a72-4faf-9df1-546561855b8c"}],"disableBackwardsNavigation":false,"randomQuestions":false,"endGame":{"showResultPage":true,"showSolutionButton":true,"showRetryButton":true,"noResultMessage":"Finished","message":"Your result:","scoreBarLabel":"You got @finals out of @totals points","overallFeedback":[{"from":0,"to":100}],"solutionButtonText":"Show solution","retryButtonText":"Retry","finishButtonText":"Finish","submitButtonText":"Submit","showAnimations":false,"skippable":false,"skipButtonText":"Skip video"},"override":{"checkButton":true},"texts":{"prevButton":"Previous question","nextButton":"Next question","finishButton":"Finish","submitButton":"Submit","textualProgress":"Question: @current of @total questions","jumpToQuestion":"Question %d of %total","questionLabel":"Question","readSpeakerProgress":"Question @current of @total","unansweredText":"Unanswered","answeredText":"Answered","currentQuestionText":"Current question","navigationLabel":"Questions","questionSetInstruction":"Choose question to display"}}

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