Question

The diagram below shows the layers of a rock having an ammonite:

Which statement about the rock fossils is true?

Fossil Y is older than fossil X.
Fossil Z is younger than fossil Y.
Fossil Z existed over many periods of time.
Fossil Y existed during the same period as the ammonite.

Answer 1

B.

Step-by-step explanation:

The lower in the ground a fossil is, the older it is. Since fossil Z is above fossil Y, fossil Z is younger than fossil Y.

Answer 2

Step-by-step explanation:

Fossil Y is older than fossil X.