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What is the common shape of a valley formed by a glacier?

Answer and explanation

Correct answer: U-shaped

The correct answer is B, U-shaped. A moving glacier fills a valley and erodes its floor and sides through processes such as abrasion and plucking. Unlike a river, which commonly cuts mainly downward in its upper course and forms a V-shaped valley, a glacier is thick and wide and removes material from the sides as well as the bottom. This broad erosion produces steep valley walls, a relatively rounded floor, and a U-shaped cross-section. Option A is mainly associated with river erosion. Option C is not the standard cross-sectional form of a glacial valley, and option D describes an island rather than a valley. The memory cue is: river cuts a V; glacier widens it into a U.

Related tags

Glacial ValleyU-Shaped ValleyGlacial ErosionLandformsCommon AdjustmentsFinancial Statements – IiFinancial Statements IiAccountancy

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