B. erosion by glaciers.
U-shaped valleys are typically formed by the glacial erosion processes, where glaciers carve out the landscape, creating the characteristic U shape as they move through the valleys.
The U-shaped valleys in the Rocky Mountain region are the result of
(1 point)
A. erosion and deposition by rivers.
B. erosion by glaciers.
C. uplift.
D. freeze and thaw weathering.
1 answer