Question

The Silurian period occurred 

A. during the Hadean eon.   B. before the Neogene period.   C. during the Mesozoic era.   D. after the Permian era.

Answer 1

We know that the Silurian period gave way to the Devonian period, which is when the Neogene era started, therefore:

The answer is B. before the Neogene era.

Hope it helped,

BioTeacher101