How do glaciers erode Earth’s surface?

plucking
tilling
sedimentation
kettling

Glaciers erode Earth's surface through a process known as plucking, which involves the glacier's movement over the land, picking up rocks and other debris and carrying them away. Glaciers also erode the land through a process called tilling, which involves the glacier's movement over the land, grinding and pulverizing the rocks and other debris beneath it. Glaciers also erode the land through sedimentation, which involves the glacier's movement over the land, depositing sediment and other debris in its wake. Finally, glaciers erode the land through a process called kettling, which involves the glacier's movement over the land, creating depressions in the land that can fill with water and form lakes.