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Mass Extinction Hypothesis - 1819
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1. Describe the fate of the earth if it does not die accidentally.
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2. " In that complex fossil record there were times where organisms were apparently dying out quickly." These short periods are called?
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3. Describe the geological evidence that there was astroid event in the last mass extinction?
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4. Why was the amount of Iridium in the thin layer significant?
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Pg. 522 of text, top of second column, 1st paragraph.
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5. The last mass extinction ended what Period? What type of animal now dominated?
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6. What animals dominated after the Permian mass extinction?
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At about 10:30 of the video. The presenter does go back and forth in time.
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7. What are biomarkers and how are they used in Paleontology?
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8. What is the Kump hypothesis? Describe how it could lead to mass extinctions.
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9. What triggers these greenhouse mass extinctions?
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10. Why will a gas mask of Hydrogen sulfide potentially save lives in the future? Explain fully.
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