The difference between a natural level and an arbitrary level is:
A) natural level is a vertical subdivision and an arbitrary level is a horizontal subdivision.
B) natural level is a horizontal subdivision and an arbitrary level is a vertical subdivision.
C) natural level is a vertical subdivision based on natural breaks in sediments and arbitrary level is a vertical subdivision used only when natural strata are lacking or more than 10 cm deep.
D) irrelevant. Natural levels are no longer used in archeology, only arbitrary levels are used.

Question

Quizplus · Accepted Answer

Natural levels follow the natural breaks or layers in sediment, allowing archaeologists to excavate according to the way sediments were deposited over time. Arbitrary levels are used when natural strata are not clearly defined or for practical reasons in excavation strategy, such as when layers are too deep.

The Difference Between a Natural Level and an Arbitrary Level