Question

What are four the main causes of erosion?

A. freezing, hydration, oxidation, salt crystallization
B. wind, water, ice, gravity
C. biological, chemical, mechanical, subterranean

Answer 1

A

Step-by-step explanation:

i just did it on edge

Answer 2

B

Step-by-step explanation:

water is the main reason, and being thats the only answer with water its obvious