How are fossils evidence of biological evolution

Answer:They are evidence because they show that life was once different on Earth. It shows that many different species also used to be on Earth.

Fossils are important evidence for evolution

Explanation:

because they show that life on earth was once different from life found on earth today. Usually only a portion of an organism is preserved as a fossil, such as body fossils (bones and exoskeletons), trace fossils (feces and footprints), and chemofossils (biochemical signals).