How mountain building and streams and rivers can work together to help make fertile valley soils

Explain how mountain building and streams and rivers can work together to help make fertile valley soils?
Also, from these chapters do you think we should be thinking about water and soil as renewable or nonrenewable resources? Explain your answer. Based on
your answer are there ways that we should be using these resources differently?
Lastly, what was the most interesting part of your reading? What was the dullest or most confusing part of the reading? Remember each journal entry should be a minimum of 200 words.