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

Answer: Option (2)

Explanation: It is clear from the figure that the fossil Z appears to be at the top, fossil Y in the middle and fossil X at the bottom, and we know that the rocks appearing at the top is younger than the rocks that are present below. Thus it is applicable in terms of fossils too i.e the fossil Z is younger than the fossil Y.

Hence the correct option is (2)