Use this sentence: Scientists found a fossil in a layer of rock that is 10 million years old.

Question

Which is correct about the fossil's relative age?

(1 point)
Responses

The fossil cannot be dated with the given information.
The fossil cannot be dated with the given information.

The fossil must be younger than 10 million years.
The fossil must be younger than 10 million years.

The fossil is exactly 10 million years old.
The fossil is exactly 10 million years old.

The fossil must be older than 10 million years.

Answer 1

The correct response is:

The fossil must be older than 10 million years.

Fossils are usually found in layers of rock, and the rock layer's age typically provides a minimum age for the fossils it contains. Therefore, the fossil must be older than the layer of rock it was found in, which is 10 million years old.