The law of superposition states that, in horizontal layers of sedimentary rock, each layer is:

Question

A.
Younger than the layer above it and older than the layer below it.
B.
Neither older nor younger than the other layers.
C.
Older than the layer above it and younger than the layer below it.
D.
Always older than any vertical layers.

Answer 1

The correct answer is: C. Older than the layer above it and younger than the layer below it.

The law of superposition states that in undisturbed sedimentary rock layers, the oldest layers are at the bottom, and the younger layers are at the top.