The principle that states the undisturbed rock sequence has the oldest rocks on the bottom is known as
A. original juxtaposition.
B. superposition.
C. relative age dating.
D. original parallelism.
The superposition principle of rocks states that for a horizontally lying rock formations, the oldest layers of rocks are at the bottom and the newest ones are resting on the top. Thus, the answer to this item is letter B.
