Answer:
Denudation is a process that causes the wearing away of the earths surface by moving water, by ice, by wind and by waves. this leads to a reduction in elevation and in relief of landforms and of landscapes
The answer is all of the above because they are all true.
So the answer is D
Biotic factors are organisms that interact with non-living & living parts of an ecosystem.
Egs. badgers, worms, fungi, bacteria, insects.
