Stratigraphy is based on the assumption that layers are deposited in order;thus,an artifact or fossil in a lower stratum is__________________one found in a higher stratum.
A)the same age as
B)older than
C)younger than
D)likely to be descended from
E)likely to be unrelated to

Question

Quizplus · Accepted Answer

Stratigraphy is based on the principle of superposition, which states that, in an undisturbed sequence of layers, the oldest layer is at the bottom and the youngest layer is at the top. Therefore, an artifact or fossil found in a lower stratum is older than one found in a higher stratum.

Stratigraphy Is Based on the Assumption That Layers Are Deposited