Question

The rock and fossil record shows that
A.
all of the changes during Earth's history have been slow and gradual.
B.
the Earth has not changed very much over the course of its history.
C.
both gradual and sudden changes have occurred during Earth's history.
D.
all of the changes during Earth's history have been very sudden.

Answer 1

C. both gradual and sudden changes have occurred during Earth's history.