PLEASE HELP THIS IS DUE NOW
will mark brainliest!
10 points

What can scientists learn from index fossils?

A. The events that caused a layer of rock to form

B. The type of atoms in a sample

C. The exact date a plant or animal lived

D. The age of an unfamiliar layer of rock

PLEASE HELP THIS IS DUE NOW will mark brainliest 10 points What can scientists learn from index fossils A The events that caused a layer of rock to form B The t class=