At the end of which geologic period did the largest mass extinction known to science take place? A. Cambrian B. Devonian C. Silurian D. Permian

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At the end of the PERMIAN period, the largest mass extinction known to science took place.

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Asked 3/22/2012 4:21:43 PM

Updated 2/13/2017 10:41:34 AM

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emdjay23

At the end of the PERMIAN period, the largest mass extinction known to science took place.

Added 2/13/2017 10:41:34 AM

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Confirmed by Janet17 [2/13/2017 10:43:48 AM]

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The principle of original horizontality is evidence that Earth is largely static and that rock layers do not change much once they are laid down. FALSE.

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