Through abrasion, glaciers often polish rock surfaces over which they flow.

Name: Through abrasion, glaciers often polish rock surfaces over which they flow.
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Glaciers can pick up and carry a large amount of sediment, including rocks of various sizes. As these rocks are dragged along the glacier's bed and sides, they can scrape against other rocks and create a polishing effect. This process is known as abrasion and can leave distinctive, smooth surfaces behind.

Through Abrasion, Glaciers Often Polish Rock Surfaces Over Which They