EARTH SCIENCE
FOSSILS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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*Most recent extinction is called the Cretaceous-Tertiary extinction event.*Happened 65.5 m.y. ago*Climate and geologic changes are thought to have weakened the organisms.*A meteor strike was probably the final blow.
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Invertebrate Extinction
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Vertebrate Extinction
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Protozoa Extinction
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Dinosaur Extinction
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Explanation:
Detailed explanation-1: -The leading theory is that a huge asteroid or comet slammed into Earth 65 million years ago, blocking sunlight, changing the climate and setting off global wildfires.
Detailed explanation-2: -Asteroid impact, not volcanism, caused the end-Cretaceous dinosaur extinction.
Detailed explanation-3: -What caused the extinction? Several lines of geological evidence indicate that an asteroid that was as much as 10 kilometers (6 miles) in diameter hit the Earth at the end of the Cretaceous Period.
There is 1 question to complete.