By forming valleys
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Glaciers can carve out valleys and create u-shaped valleys through the process of glacial erosion. As glaciers move, they transport large amounts of sediment and rocks that accumulate at their edges, forming moraines. When glaciers retreat, they leave behind depressions that can fill with water, creating lakes.
glaciers weather the earths surface
NO
As the glaciers move over the land they help smash the land and also add silt and dirt to the ground.
It is the time when glaciers disapeared from the land before reforming.
Continental glaciers are thicker and larger. Valley glaciers are formed on mountains; continental glaciers are formed on flat land.
it was all water and rocks and themn when it melted all the came out and formed a lake
I think were no glaciers back then
There is about 4.9% of land covered by glaciers in alaska.