Multiple Choice
One of the strongest lines of evidence of a meteor or comet impact in the late Cretaceous is
A) a thin layer of potassium- 40 in late Cretaceous fossil strata.
B) a thin layer of iridium- enriched clay in late Cretaceous fossil strata.
C) the extinction of the dinosaurs.
D) the warming of Earth's climate in the late Cretaceous.
Correct Answer:
Verified
Correct Answer:
Verified
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