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 each layer above is younger. 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 the top - most layer.

Answer:

Layer D is the youngest layer.