Final answer:
Fossils provide evidence for evolution and help paleontologists understand the history of life on Earth. They can indicate changes in land and provide information about past geological events.
Step-by-step explanation:
Fossils are important evidence for evolution and the history of life on Earth. Paleontologists study fossils to understand how organisms have evolved over time and how ancient environments looked like.
For example, fossils of ancient sea life on dry land far from oceans suggest that land has changed over time. The many layers of rock help trace the history of Earth and life on Earth. Indications of past volcanic eruptions, earthquakes, and erosion support the idea of an older Earth.