Most of the world's coal was deposited in coal swamps during the ________.
A) Cretaceous
B) Ordovician
C) Carboniferous
D) Jurassic

Question

Quizplus · Accepted Answer

Most of the world's coal deposits were formed during the Carboniferous period, which occurred approximately 360-300 million years ago. During this time, large swamps formed in low-lying areas, and the vegetation that accumulated in these swamps eventually become the coal deposits we see today.

Most of the World's Coal Was Deposited in Coal Swamps