Question

37 multiple choice 6.15 points at the end of this period, the greatest mass extinction ever occurred? cretaceous devonian permian ordovician

Explanation:

The Permian - Triassic extinction event, also known as the Great Dying, is the most severe mass - extinction in Earth's history, occurring at the end of the Permian period. It wiped out about 90 - 96% of marine species and 70% of terrestrial vertebrate species.

Answer:

C. Permian