In geology, the principle of uniformitarianism asserts that:
A) the processes that modified the earth's surface in the past are unknowable because they cannot be directly observed.
B) the processes now operating to modify the earth's surface are the same as those of the geologic past.
C) the processes now operating to modify the earth's surface cannot simply be assumed to be the same as those of the geologic past, but must be demonstrated to be the same.
D) geologic processes are distinct from archaeological processes and that uniformitarianism only applies to geologic processes.

Question

Quizplus · Accepted Answer

The principle of uniformitarianism, often summarized as "the present is the key to the past," posits that the natural processes we observe shaping the Earth today have worked in the same way throughout geological time.

In Geology, the Principle of Uniformitarianism Asserts That