Answer:
Explanation:
We can determine how old they are based on the radioactive decay of isotopes and how weathered the rocks are on the inside and outside.
We can also learn what types of animals lived in that time, which animals came first by how deep the fossil is, and where they lived by the location of the fossil.
We can learn about when certain groups of animals evolved and what their ancestors were like.
I hope this helped have an amazing day! :)
(I put in 6 examples and reasons for extra help!)
