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GeographyHardAsked in: CDS · CDS-II 2016, GK

Which one of the following is not related to wind erosion?

  1. A.Wind gap
  2. B.Zeugen
  3. C.Dreikanter
  4. D.Demoiselle

Correct answer

A. Wind gap

Explanation

The correct answer is A, Wind gap. A wind gap has nothing to do with wind, despite its name. It is a notch or gap in a ridge through which a river once flowed; when that river's headwaters were captured by another stream, the gap was left dry. So it is a landform of river action and river capture. Option B is wrong because zeugen are tabular ridges carved by wind abrasion in deserts where hard and soft rock layers lie horizontally; the soft layers are cut away and the hard caps remain. Option C is wrong because a dreikanter is a pebble with three wind-cut faces, a kind of ventifact shaped by sand-laden winds. Option D is wrong because a demoiselle is a rock pillar with a resistant cap protecting softer rock below, shaped by differential erosion and listed among the erosional landforms of wind in arid regions. Other wind landforms include yardangs, mushroom rocks and inselbergs. Exam tip: wind gap, river capture; water gap, a gap with a river still flowing through it.

Practice Questions

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Q2.GeographyAsked in: CDS · CDS-II 2017, GKMedium

Which of the following statements is/are correct? 1. Himalayan rivers have their origin in the snow-covered areas, hence are dry in winter season. 2. Rivers of the Peninsular Plateau have reached maturity. 3. Himalayan rivers depict all the three stages of normal cycle of erosion. Select the correct answer using the code given below.

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

Himalayan rivers are perennial, so statement 1 is wrong, while statements 2 and 3 are correct. Himalayan rivers such as the Ganga, Indus and Brahmaputra rise from glaciers and snowfields and also get monsoon rain, so they flow all year round, including in winter.

Q3.GeographyAsked in: CDS · CDS-II 2017, GKMedium

Which of the following statements related to latitude are true? 1. Rainfall, temperature and vegetation vary with latitude. 2. The difference between the longest day and the shortest day increases with latitude. 3. Indira Point is located approximately at 6°45' N latitude. Select the correct answer using the code given below.

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

All three statements about latitude are true. Latitude decides how directly the Sun's rays strike a place, so temperature, rainfall and the type of vegetation change from the equator towards the poles, from hot, wet rainforests to cold tundra.

Q4.GeographyAsked in: CDS · CDS-II 2017, GKMedium

Which of the following lakes is/are situated in Ladakh? 1. Tso Kar 2. Pangong Tso 3. Tsomgo 4. Tso Moriri Select the correct answer using the code given below.

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

Tso Kar, Pangong Tso and Tso Moriri are high-altitude lakes of Ladakh, while Tsomgo lies in Sikkim. Pangong Tso, at about 4,350 metres, is a long, narrow lake that stretches from Ladakh into Tibet, and most of its length lies on the Chinese side.