Which is an asymmetrical hill of exposed bedrock produced by plucking and abrasion?

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A roche moutonnée is an asymmetrical hill of exposed bedrock that is produced by the action of plucking and abrasion. Eskers are long ridges of sediment that form when meltwater streams deposit sediment in tunnels beneath glaciers, while drumlins are elongated hills that are composed of glacial till and are formed by the movement of a glacier during its advance or retreat. A bergschrund is a crevasse that forms where the moving portion of a glacier separates from the stagnant ice above.

Which Is an Asymmetrical Hill of Exposed Bedrock Produced by Plucking