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Erosion by Glaciers. Like flowing water, flowing ice erodes the land and deposits the material elsewhere. Glaciers cause erosion in two main ways: plucking and abrasion. Plucking is the process by which rocks and other sediments are picked up by a glacier. They freeze to the bottom of the glacier and are carried away by the flowing ice.
What are the four agents of erosion? The four agents of erosion are water, ice, wind and waves. Each of these agents is able to weather rocks, causing them to break apart after being worn down. Of the four agents of erosion, water is considered to be the most important and commonly occurring.