A rock knob is shaped by moving ice,such that the lee side is eroded by glacial abrasion to create a smooth surface.

Name: A rock knob is shaped by moving ice,such that the lee side is eroded by glacial abrasion to create a smooth surface.
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A rock knob, also known as a roche moutonnée, is shaped by moving ice such that the upstream side (stoss side) is smoothed by glacial abrasion, while the downstream side (lee side) is often plucked and left rough as the glacier moves over it.

A Rock Knob Is Shaped by Moving Ice,such That the Lee