Question

1. Absolute dating determines whether a fossil formed before or after another fossil.

True
False
2. Which of the following was a major milestone that allowed for greater diversity of life during the Paleozoic Era?

Reptiles became more diverse.
Many marine animals became extinct.
Photosynthetic prokaryotes produced more oxygen.
Animals moved from the sea to the land.
3. The Permian mass extinction, during which approximately 90% of all marine life became extinct, occurred during which geologic era?

Cenozoic Era
Paleozoic Era
Mesozoic Era
Precambrian Era

Answer 1

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