How does a glacier accomplish erosion?

Answer 1

The glacier is melting on the mountain and underneath it is like a river which eroding a side of the mountain when the glacier melts enough, it will slide down the mountain and into the lake that the river underneath the glacier had created.

Hope this helps :)

Answer 2

A glacier accomplishes erosion through processes such as plucking and abrasion. Plucking involves the glacier picking up and carrying rocks and debris as it moves, while abrasion occurs when these materials scrape and grind against the bedrock, wearing it down over time. The combination of these processes helps to shape the landscape by carving out valleys, creating moraines, and polishing rocks.