What significant event occurred around 66 million years ago that is believed to have contributed to the extinction of the dinosaurs?
What Really Killed the Dinosaurs

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Science, Biology, Geography, Physics
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11th Grade - University
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Hard
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1.
OPEN ENDED QUESTION
3 mins • 1 pt
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2.
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3 mins • 1 pt
Describe the environmental changes that occurred after the asteroid impact.
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3.
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3 mins • 1 pt
What were some of the species that went extinct during the KPG event?
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4.
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3 mins • 1 pt
How did the extinction event change the dominance of species on Earth?
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5.
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3 mins • 1 pt
What is the Cretaceous Paleogene Extinction event, and why is it significant?
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6.
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3 mins • 1 pt
Discuss the implications of the Iridium layer found in the geological record.
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7.
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3 mins • 1 pt
What evidence did Walter Alvarez find that supported the asteroid impact theory?
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