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GeographyMediumAsked in: UPSC CAPF · CAPF 2023, Paper I

Which one among the following statements about 'Drumlin' is correct ?

  1. A.It is a streamlined hill moulded in glacial drift on the till plains.
  2. B.It is a city located in central Europe.
  3. C.It is a river.
  4. D.It is a narrow road in Tibet.

Correct answer

A. It is a streamlined hill moulded in glacial drift on the till plains.

Explanation

The correct answer is A. A drumlin is a smooth, oval hill shaped by a moving glacier out of glacial till, so it is a landform of glacial deposition.

As an ice sheet moves over its bed it moulds the boulder clay it carries into elongated mounds. A drumlin looks like an inverted spoon or half an egg: the blunt, steeper end faces the direction from which the ice came (the stoss end) and the gentle, tapering end points the way the ice moved. Drumlins usually occur in groups, called a basket of eggs topography, and they help geographers work out the direction of past ice flow. Fine examples are found in Ireland, Scotland, Canada and the north of the United States.

B is wrong: drumlin is a geographical term, not the name of a European city.

C is wrong: it is a hill of deposited material, not a river or any flowing water.

D is wrong: it has nothing to do with roads or Tibet.

Exam tip: glacial deposition gives drumlins, eskers and moraines; glacial erosion gives cirques, aretes and U-shaped valleys.

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Q1.GeographyAsked in: CDS · CDS-I 2021, GKEasy

Which one of the following is a cold ocean current ?

  1. A.Brazilian Current
  2. B.Gulf Stream
  3. C.North Equatorial Current
  4. D.California Current
Show answer
Correct answer: D. California Current

It flows south along the west coast of North America, carrying cold water from higher latitudes towards the equator. As a rule, currents moving from the poles towards the equator are cold, and those moving from the equator towards the poles are warm.

Q2.GeographyAsked in: CDS · CDS-I 2023, GKMedium

Rani told her friends that last year she did boating in four different lakes, namely, Loktak, Barapani, Kolleru and Pulicat. Which of the following States did she visit?

  1. A.Manipur, Meghalaya, Kerala, Tamil Nadu
  2. B.Manipur, Meghalaya, Andhra Pradesh, Tamil Nadu
  3. C.Mizoram, Assam, Kerala, Tamil Nadu
  4. D.Mizoram, Assam, Andhra Pradesh, Tamil Nadu
Show answer
Correct answer: B. Manipur, Meghalaya, Andhra Pradesh, Tamil Nadu

Loktak is in Manipur, Barapani in Meghalaya, Kolleru in Andhra Pradesh, and Pulicat on the Andhra Pradesh–Tamil Nadu border. Loktak is the largest freshwater lake in north-east India, famous for its floating islands of vegetation called phumdis; Keibul Lamjao, the only floating national park in the world, lies on it.

Q3.GeographyAsked in: CDS · CDS-II 2023, GKMedium

Consider the following statements on 'Fog' : 1. Fog is simply a cloud that forms close to the ground. 2. Radiation fog is associated with radiation cooling of the land at night. 3. Advection fog forms when moisture is blown over a cold surface and is chilled by contact. Which of the statements given above are correct ?

  1. A.1 and 2 only
  2. B.2 and 3 only
  3. C.1 and 3 only
  4. D.1, 2 and 3
Show answer
Correct answer: D. 1, 2 and 3

All three statements are correct descriptions of fog and its two main types. Fog forms when air near the ground cools to its dew point and its water vapour condenses on tiny dust and smoke particles, so it is in effect a cloud at or near ground level.