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Physics, 18.02.2021 03:00 raywils0n12300p0t3yc

What does a mass extinction look like in the fossil record? O A. A layer of rock contains only fossils of living things that no longer
exist on Earth.
B. A layer of rock contains only fossils of species that presently exist
on Earth.
O C. A younger layer of rock contains a much greater variety of fossils
than a slightly older layer of rock does.
D. An older layer of rock contains a much greater variety of fossils
than a slightly younger layer of rock does.

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What does a mass extinction look like in the fossil record? O A. A layer of rock contains only foss...
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