Answer:
A. What is the principle of uniformitarianism?
Uniformitarianism would therefore be a theory of the Earth characterized by the uniformity of physical laws, processes and the rhythm with which they have acted in nature (gradualism).
B. How does this principle make it easier for geologists to understand Earth's past?
In geology, uniformitarianism has included the gradualist concept that "the present is the key to the past" and that geological events occur at the same rate as they always have, although many modern geologists no longer hold to strict gradualism.
Explanation:
I hope I helped you! :)
