Multiple Choice
It is believed that the two main reasons for mass extinctions in Earth's history have been
A) global warming and human intervention.
B) impact of Earth's with a large, celestial body and human intervention.
C) human intervention and shifting of Earth's continents.
D) impact of Earth with a large, celestial body and shifting of Earth's continents.
E) global warming and shifting of Earth's continents.
Correct Answer:

Verified
Correct Answer:
Verified
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