GEOLOGY

Detailed explanation-1: -U-shaped valleys form through glacial erosion. Glaciation develops in established v-shaped river valleys where the ice erodes the surrounding rocks to create a “U” shaped valley.

Detailed explanation-2: -Valley glaciers carve U-shaped valleys, as opposed to the V-shaped valleys carved by rivers. During periods when Earth’s climate cools, glaciers form and begin to flow downslope. Often, they take the easiest path, occupying the low V-shaped valleys once carved by rivers.

Detailed explanation-3: -U-shaped valleys, also called trough valleys or glacial troughs, are formed by the process of glaciation. They are characteristic of mountain glaciation in particular.

Detailed explanation-4: -They all take the form of a “U” or “V.” Rivers and streams make most primary valley cuts, carving steep-walled sides and a narrow floor that from afar looks like the letter “V.” The gradient of the river-how quickly it drops-helps define the steepness of the sides and the width of the floor.

Detailed explanation-5: -V-shaped valleys are carved out by the river in their youthful stages. They are formed by the erosional actions of the rivers.