U-shaped valleys provide evidence of which process?(1 point)
Responses
deposition
deposition
coastal erosion
coastal erosion
glacial erosion
glacial erosion
wind erosion
wind erosion
glacial erosion
U-shaped valleys provide evidence of glacial erosion.
To arrive at this answer, we can eliminate the other options one by one:
1. Deposition: U-shaped valleys are formed by the movement of glaciers, which erode the land rather than depositing sediment. Therefore, deposition is not the correct process.
2. Coastal erosion: U-shaped valleys are not formed by coastal erosion. Coastal erosion occurs primarily along coastlines due to the action of waves and currents, not glaciers.
3. Wind erosion: While wind erosion can shape landforms like sand dunes and rock formations, it is not responsible for the formation of U-shaped valleys. Wind erosion typically creates more gently sloping landforms.
That leaves us with the final option, glacial erosion. Glaciers are massive bodies of ice that move downhill under their own weight. As they flow, glaciers scrape and carve the land, creating U-shaped valleys with steep sides and a flat bottom. Therefore, the correct process is glacial erosion.