Question

the diagram shows horizontal rock layers. according to the law of superposition, which statement is supported by the diagram? layer c is the oldest layer. layer b is younger than layer d. layer c is older than layer a. layer d is the youngest layer.

Explanation:

Step1: Recall law of superposition

In undisturbed horizontal rock - layers, the oldest layer is at the bottom and the youngest is at the top.

Step2: Analyze rock - layer positions

Layer A is at the bottom, followed by B, C, and D at the top. So layer A is the oldest and layer D is the youngest.

Answer:

Layer D is the youngest layer.