Question

the diagram below shows the layers of a rock having an ammonite: which statement about the rock fossils is true? fossil z existed over many periods of time. fossil y existed during the same period as the ammonite. fossil z is younger than fossil y. fossil y is older than fossil x.

Explanation:

In sedimentary rock layers, lower - lying fossils are generally older. Fossil X is at the bottom, then Y, and Z is at the top. So, Fossil Y is older than Fossil X.

Answer:

Fossil Y is older than fossil X.