Respuesta :

kentgitau4

Explanation:

The "fossil record" refers to the placement of fossils throughout the surface layers of the Earth. Older fossils are buried more deeply than younger ones. Scientists use the placement of fossils as a guide for determining when life forms existed, and how they evolved.

sethanclark

Answer:

It is a record to tell which time the rock is from

Explanation:

They compare fossils with rock from the same level to tell what period it is from