explain the erosional work of glacier ?
 

Dear Student,

a. Glaciers also perform the function of erosion, deposition and transforms the landscape.
b. 
. Glaciers may help in the process of weathering and may erode, exposing the rock beneath.
c. 
Glaciers may carve deep hollow like structure and may create different landscapes as they move and erode the rock underneath.
d. They may result in the formation of  cirque​, which is a kind of depression created due to collection of snow.
e. Glacier may also widens the exsiting valley resluting the formation of a U shaped valley.
f. Glaciers may also transport huge chumks of rocks from mountain slopes, valleys etc.
g. Also when glacier melts, , it deposits its debris in different parts deposited are called moraines​



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Land and rock cannot move out of the path of a glacier, so they are subjected to glacial erosion, which is simply the carving and shaping of the land beneath a moving glacier. 
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If a block of ice the size of a mountain is moving toward you, what should you do? Well, if it were me, I would get out of the way. These moving mountains of ice do exist, and we call themglaciers. They tend to move very slowly, often only a few centimeters per day, so it would be a rare occasion for a human to get struck by a glacier. This is not true, however, for the landscape that lies in the path of a moving glacier. Land and rock cannot move out of the path of a glacier, so they are subjected to glacial erosion, which is simply the carving and shaping of the land beneath a moving glacier. Glacial erosion and the interesting landforms that result from this 
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There are three main types of glacial erosion plucking,abrasion and freeze thaw.Plucking is when melt water from a glacier freezes around lumps of cracked and broken rock .When ice moves downhill,rock is plucked from the black wall.
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Glacial Erosion

There are two main processes of glacial erosion. The first that we will talk about is plucking, which is defined as the erosion and transport of large chunks of rocks. As a glacier moves over the landscape, water melts below the glacier and seeps into cracks within the underlying bedrock. This water freezes and melts, weakening the bonds holding pieces of bedrock in place. These pieces of rock can now be picked up or plucked from their rocky base and carried along with the moving glacier. If you ever put an ice cube on your finger and felt the skin on your finger stick to the ice cube, then you have a fairly good idea of how plucking works.

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