which layer is the youngest 1 2 3 4

which layer is the youngest 1 2 3 4

which layer is the youngest 1 2 3 4

Answer

Brief Explanations:

In geology, the principle of superposition states that in an undisturbed sequence of sedimentary rocks, the youngest layer is on top. Assuming this is an undisturbed rock - layer sequence, the top - most layer is the youngest.

Answer:

1