Question

How is rock eroded by glaciers and wind?

Answer 1

This occurs threw friction or erosion. This is when a thing is constantly getting force and it begins to wear away. The Gran Canyon is a great example of this. Wind erosion is a slow process while glaciers tend to be a bit faster.

Hope I helped. :)

Answer 2

Glacier-Rock is picked up through glacial plucking. The glacier then carries the rock until the glacier melts. The rock is then in a totally different spot.
Wind-Rock is moved by wind in small pieces, like as gravel, soil or sand. The rock then is dropped from the wind in a new spot.