Consider the following statements regarding Drumlins 1 It is composed mainly of glacial till with so...........

Geography and Environment (MPPCS) World Physical Aspects

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Consider the following statements regarding Drumlins:

1. It is composed mainly of glacial till with some masses of gravel and sand.

2. It gives an indication of direction of glacier movement.

3. The long axes of drumlins are perpendicular to the direction of ice movement. .

Which of the above statements is/are correct?

1 and 2 only

3 only

2 and 3 only

1, 2 and 3

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Explanation:

Correct Option: (a) Explanation: Statement 3 is incorrect: The long axes of drumlins are parallel to the direction of ice movement. Supplementary notes: Glacial Depositional landforms Moraines Eskers Outwash Plains Drumlins Drumlins Drumlins are smooth oval shaped ridge-like features composed mainly of glacial till with some masses of gravel and sand. The long axes of drumlins are parallel to the direction of ice movement. They may measure up to 1 km in length and 30 m or so in height. One end of the drumlins facing the glacier called the stoss end is blunter and steeper than the other end called tail. The drumlins form due to dumping of rock debris beneath heavily loaded ice through fi ssures in the glacier. The stoss end gets blunted due to pushing by moving ice. Drumlins give an indication of direction of glacier movement.