I need this asap! For the location and geologic periods represented by these rock layers, the most drastic and sudden change in life forms occurred at the end of the _______ geologic period. A. Carboniferous

I need this asap!

For the location and geologic periods represented by these rock layers, the most drastic and sudden change in life forms occurred at the end of the _______ geologic period.

A.
Carboniferous
B.
Devonian
C.
Cambrian
D.
Silurian

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I need this asap! For the location and geologic periods represented by these rock layers, the most drastic and sudden change in life forms occurred at the end of the _______ geo…

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