Question

the diagram shows the cross - section of a cliff. it shows several rock layers containing fossils. which of the following layers is most likely the oldest?
a. the layer with the dinosaurs
b. the layer with the amphibians
c. the layer with the fishes
d. the layer with the trilobites

Explanation:

In geology, the principle of superposition states that in undisturbed sedimentary rock layers, the oldest layer is at the bottom. Trilobites are among the earliest - known complex life forms.

Answer:

D. The layer with the trilobites