Glacial erosion forms wide, U-shaped valleys is the true statement.
In essence, glaciers are substantial ice masses that are either created by massive amounts of snow or a frozen river. The glaciers contribute significantly to erosion since they not only appear at higher locations and slowly travel towards lower ones as the ice expands.
The glaciers modify the terrain according to their shape, which is an extended, river-like U-shape, by eroding large amounts of material due to their size, weight, movement, and pressure.
The long, narrow U-shaped valleys that the glaciers leave behind after melting are divided into those that are left as valleys and those that are filled with seawater to form fjords.
To learn more about Glacial Erosion refer to:
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