Multiple Choice
Why was the comet impact a chance happening that benefited the evolution of humans?
A) It deposited a significant amount of nitrogen into the Earth's atmosphere.
B) It led to an increase in global UV radiation,which killed off most of the forests and jungles.
C) Mammals got an evolutionary boost.
D) Plant life began to decline.
Correct Answer:
Verified
Correct Answer:
Verified
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