Topography with high mountains and steep slopes are especially vulnerable to what type of weathering?

Question

a.chemical

c.chemical and mechanical

b.mechanical

Answer 1

B. Mechanical

This is also called physical weathering.

In mechanical weathering rocks are broken into smaller pieces but still have the same chemical composition as the original rock.

The primary process in mechanical weathering is abrasion.  High mountains and steep slopes experience abrasion as material "slides" down the incline due to gravity.