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

Which is correct about the fossil's relative age?

(1 point)
Responses

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

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

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

The fossil is exactly 10 million years old.

1 answer

The correct response is:

The fossil must be younger than 10 million years.

This is because the fossil was found in a layer of rock that is 10 million years old, meaning the fossil itself could have formed at any time up to that age, but it cannot be older than the age of the rock layer.