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Answer in brief.

Define: a) Moraine b) Drumlin c) Esker.

Answer :

I. Moraine


Erosion and deposition are also caused by the actions of glaciers. Glaciers are huge masses of snow that is transported, accumulated and deposited in other regions due to the action of natural agents. Moraines are the result of depositional glacial action. It is formed by the deposition of the continental glaciers or valley glaciers along with the particles and debris eroded by the glacier. There are different types, sizes and shapes of moraine- ground moraine, lateral moraine, terminal moraine, medial moraine and recessional moraine.


II. Drumlin


Erosion and deposition are also caused by the actions of glaciers. Glaciers are huge masses of snow that is transported, accumulated and deposited in other regions due to the action of natural agents. Drumlins are the result of depositional glacial action. They are the result of the formation of moraines. They are the debris and particles carried by the moraines. They are the drawn-out hills of rock, sand, boulders and other elements formed with the moving glaciers. It mainly consists of glacial deposits.


III. Esker


Erosion and deposition are also caused by the actions of glaciers. Glaciers are huge masses of snow that is transported, accumulated and deposited in other regions due to the action of natural agents. Eskers are the depositional feature of glaciers consisting of boulders, gravel and sand that is deposited by the melting water in the glaciers. The melting glacier deposits the components that it carries leading to the formation of eskers.


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