Burrowing animals such as rodents and moles loosen the ground or surface materials resulting in their physical disintegration. When animals die, their decaying bodies release chemicals which also leads to disintegration of rocks.
It displays three type of glacial erosion, like the cirque that is created by the side wards erosion and pyramidal peak also called as the horn. And the presence of the Arêtes that is a narrow region of rocks that are separated by the two valleys. The three main type of the erosion process of the glaciers are of plucking, and abrasion and the freeze-thaw
