Question

The largest mass extinction in earth's history happened at the end of the _____ period.

a. silurian
b. permian
c. devonian
d. cretaceous

Answer 1

The answer is D. Cretaceous Hope this helps!

Answer 2

Mass extinctions when at least half of all species die out. The largest mass extinction event occurred around 250 million years ago, when perhaps 95 % of all species went extinct. Now new ones appeared.

It was during Cretaceous.

Hope this helps !

Photon