Which statement explains something that the fossil record indicates? A. Earth is 4.5 billion years old.
B. Mammals have always existed on Earth.
C. Mass extinctions have occurred several times on Earth.
D. The amount of water on Earth has decreased over time.

and after water is usually warmed by the sun the water temperature raises and then evaporates .

sorry to break it to ya but no one can answer your question it's just

jk but i am serious about the part that most people cant answer it beacuse you did not mention the section you are talking about. but it would if you added some detail and were a bit more specific.