Plucking, Is the tearing away of blocks of rock that have become frozen onto the base and sides of the glacier, Abrasion, When the glacier uses the bedrock to scrape and smooth the bedrock underneath, U-shaped valley, Previously a V-shaped valley. It has steep sides and a flattened floor as a result of glacial erosion., Cirque, The birthplace of glaciers. They are depressions on mountaintops where snow accumulates, Ribbon Lake, A lake formed by when a glacier melts. Meltwater is trapped behind moraine., Pyramid peak, A steep-sided, pyramid-shaped mountaintop, eroded on all sides by many cirques., Fiord, U-shaped valley that has been flooded by rising sea levels since the last ice age., Moraine, A ridge of accumulated rock and sediment on the side or at the front of a glacier, Snout, The toe or foot of a glacier., Compression, The process whereby accumulated snow turns into glacial ice in at a mountaintop.

Glacial Processes

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