Question

Which statements explain what the fossil record indicates? Check all that apply.

A. Earth is 4.5 billion years old.
B. many organisms have become extinct.
C. Mammals have always existed on Earth.
D. Mass extinctions have occurred several times on Earth.
E. The amount of water on Earth has decreased over time.

Answer 1

- Many organisms have become extinct

- Mass extinctions have occurred several times on Earth

Step-by-step explanation:

The fossil records show us lot of things about the Earth. They show us approximately when the life occurred on our planet, as well as the type of living organisms that lived in the past. They are a witness of the evolution of the organisms, and show us that lot of species lived in the past and over time either evolved into other species or died out. One big clue that the fossil records offer are the mass extinctions, as there are sharp changes in the living organisms at certain points of the geological past, where most of the organisms don't appear in the fossil records anymore.