To serve as a geologic clock, a process must
A)have been operating since the beginning of Earth.
B)be uniform (or at least subject to averaging).
C)be capable of being measured.
D)All of the above.

Question

Quizplus · Accepted Answer

A process can serve as a geologic clock only if it has been operating since the beginning of Earth. The process should also be uniform or subject to averaging to estimate geologic time periods accurately. Finally, the geologic process must be capable of being measured using reliable and accurate methods. Therefore, all of the above factors (A, B, and C) are crucial for a process to serve as a geologic clock.

To Serve as a Geologic Clock, a Process Must