Divisions in geologic time represent ____.
A)the passage of 10 million years
B)a mass extinction
C)distinct changes in the rock record
D)the onset of Ice Ages
E)the passage of 20 million years

Question

Quizplus · Accepted Answer

Divisions in geologic time represent distinct changes in the rock record, such as changes in the types of fossils found or shifts in the sedimentary layers. They do not specifically represent the passage of a certain number of years or the occurrence of specific events like mass extinctions or Ice Ages.

Divisions in Geologic Time Represent ____