With reference to Glaciers consider the following statements 1 Piedmont glacier is formed by the con...........

Geography and Environment (CSC) World Physical Aspects

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With reference to Glaciers, consider the following statements:

1. Piedmont glacier is formed by the convergence of several glaciers at the foot of mountain ranges.

2. Plucking and Abrasion are two of the erosional processes performed by Glaciers.

Which of the statements given above is/are correct?

1 only

2 only

Both 1 and 2

Neither 1 nor 2

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Explanation:

Statement 1 is correct. Piedmont glacier is formed when several glaciers or a single glacier converge and spill out at the foot of a mountain range forming an extensive ice-mass. The best-known piedmont glacier in the world is Malaspina glacier of Alaska.

Glaciation generally leads to erosion in the Highlands and deposition in lowlands.

Statement 2 is correct. Glaciers not only transport material as they move, but they also sculpt and carve away the land beneath them. A glacier's weight, combined with its gradual movement, can drastically reshape the landscape over hundreds or even thousands of years. The ice erodes the land surface and carries the broken rocks and soil debris far from their original places, resulting in some interesting glacial landforms.Plucking and Abrasion are two Erosion processes performed by Glaciers.

Plucking- When Glacier freezes the joints and beds of the underlying rocks. Tears out the Individual blocks and drags them away, this process of erosion is known as plucking erosion.

Abrasion- When Glaciers scratches, scraps, polishes and scours the valley floor with the debris frozen into it, this process is known as abrasion erosion.