The most massive extinction event in the history of Earth, in which 96 percent of all species became extinct over the course of a few thousand years, occurred during the a. Cretaceous. b. Devonian. c.

The most massive extinction event in the history of Earth, in which 96 percent of all species became extinct over the course of a few thousand years, occurred during the

a. Cretaceous.
b. Devonian.
c. Orodovician.
d. Permian.
e. Silurian.

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The most massive extinction event in the history of Earth, in which 96 percent of all species became extinct over the course of a few thousand years, occurred during the a. Cret…

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