8. How does a glaciated mountain valley differ in appearance from a mountain valley that was not glaciated?

A glaciated mountain valley will likely have a U-shaped profile with a broad, flat floor and steep, often striated walls due to the erosion by the glacier. In contrast, a mountain valley that was not glaciated will typically have a V-shaped profile with a narrower, more gently sloping floor and less steep walls shaped primarily by the natural erosional processes of water and weathering.