Question

The most massive extinction event in the history of Earth, in which 96 percent of all species became extinct over the course of a few thousand years, occurred during the

a. Cretaceous.
b. Devonian.
c. Orodovician.
d. Permian.
e. Silurian.

Answer 1

D. Permian. This is when 96% of all species on the planet became extinct.