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:

The law of superposition states that in undisturbed horizontal rock layers, the oldest layer is at the bottom and the youngest is at the top. Analyzing each option:

• Layer C is not the oldest (Layer A is older).
• Layer B is older than layer D (since B is below D).
• Layer C is younger than layer A (A is below C).
• Layer D is the youngest as it is at the top.

Answer:

Layer D is the youngest layer.