U-shaped valleys provide evidence of which process?(1 point)
Responses
coastal erosion
coastal erosion
wind erosion
wind erosion
glacial erosion
glacial erosion
deposition
sand dunes
glacial erosion
What is the process of wearing rocks down into smaller pieces and then taking them away called?(1 point)
Responses
weathering
weathering
deposition
deposition
erosion
erosion
condensation
erosion
Which landform is evidence of erosion by waves on rocky coasts?(1 point)
Responses
sea arches
sea arches
sand dunes
sand dunes
U-shaped valleys
U-shaped valleys
shallow pond
sea arches
What is the name of the landform remaining after a sea arch collapses?(1 point)
Responses
canyon
canyon
sea cliff
sea cliff
sea stack
sea stack
hoodoo
hoodoo
sea stack
hich landform is evidence of wind erosion?(1 point)
Responses
Grand Canyon
Grand Canyon
U-shaped valleys
U-shaped valleys
sand dunes
sand dunes
hoodoos
hoodoos
The correct answer is glacial erosion.
To arrive at this answer, we need to understand some basic concepts. U-shaped valleys are a specific type of landform that was formed by the movement of glaciers. Glaciers are large masses of ice that flow slowly downhill due to the force of gravity.
During the process of glacial erosion, a glacier slowly slides over the land, carving out and reshaping the landscape in the process. As the glacier moves, it bulldozes and plucks rocks and sediment from the ground, grinding and eroding the surrounding terrain. The process of erosion in a U-shaped valley is characterized by the scraping of rock material from the valley floor and sidewalls as the glacier moves, resulting in a distinct U-shape.
Therefore, based on the evidence provided, U-shaped valleys are a result of glacial erosion.