Question

A geologist is studying a geologic cross section of rock layers in a national park. The rock layers appear to be well preserved and undisturbed.

Which statement best identifies the oldest rock layer in the cross section?

Answer 1

Answer: Sediment rock layers.

Step-by-step explanation:

The bottom one is the hardest one.

Which over the years compresses and hardens over time.

Answer 2

The oldest rock layer is the one at the very bottom

Step-by-step explanation:

The new layers of rock pile on top of the oldest ones.