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Home Q & A Board Biology-Related Homework Help Environmental and Conservation Biology
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Yoshi Yoshi
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9 years ago
The mass extinction of dinosaurs and other animals at the end of the Cretaceous period is believed by most scientists to have been caused by
A) a massive asteroid or comet impact.
B) a massive volcanic eruption.
C) gamma radiation released from a supernova explosion.
D) overhunting by expanding populations of Neolithic humans.
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GeoExpGeoExp
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9 years ago
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Yoshi Author
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#2
9 years ago
Muchas gracias!

Appreciate your help tremendously Smiling Face with Open Mouth
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#3
9 years ago
Smiling Face with Open Mouth Great!
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