Yo plz help no links! You don’t have to answer them all anything will help. What created the landscape we see today on Earth? 2. What can cause mountains to form?
3. What are the Rocky Mountains made of?
4. How were the Rockies formed?
5. Why did the Rockies form so far inland from the plate margin?

1. the mountain building and other changes associated, over hundreds of millions of years, with global-level plate tectonics. denudation and weathering processes, both those operating at the present time and those which have operated, with stunning long-term effect, over tens of millions of years.

Explanation:

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a is the answer i believe.