Multiple Choice
An example of worldwide climatological and ecosystem change caused by a geologic event is the____________.
A) Permo-Triassic meteorite impact event
B) impact of a meteor at the end of the Cretaceous
C) increase in the atmospheric oxygen content from approximately 1 to 22%, at the end of the Cretaceous
D) Cambrian eruption of approximately 3 million cubic km of basalt in what is now Siberia
Correct Answer:
Verified
Correct Answer:
Verified
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Q22: The factors that affect Earth's long-term climate
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Q32: Warmer temperatures generally mean that the ratio
Q33: Which of these has not been noted
Q36: A biogeochemical cycle means the _.<br>A) movement
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