Answer:
C) How the Earth's surface has changed over time.
Explanation:
They cannot determine how the surface changed over time becuz fossils are in the ground not on the surface except for hundreds of years ago
They determine how life forms have changed by studying the fossils of the ancestors of the animals living in an environment today.
They determine how the environment has changed by studying fossils of plants (castes and such)
They determine how the rock formations have changed, because different kinds of fossils form when surrounded by different kinds of rock.
