Studies of temperatures during the Cenozoic era suggest that:
A) temperatures have steadily increased over time.
B) temperatures have steadily decreased over time.
C) temperatures have fluctuated, sometimes greatly, over time.
D) temperatures have stayed basically the same over time.

Question

Quizplus · Accepted Answer

Studies have shown that temperatures during the Cenozoic era have gone through fluctuations, sometimes greatly. There have been periods of both warming and cooling, such as the Paleocene-Eocene Thermal Maximum and the Pleistocene ice ages.

Studies of Temperatures During the Cenozoic Era Suggest That