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GeographyMediumAsked in: RRB JE · CBT-1, 16 Dec 2024, Shift 2

Which of the following states is also known as the 'Molassis basin', which is made up of soft unconsolidated deposits?

  1. A.Tripura
  2. B.Assam
  3. C.Mizoram
  4. D.Meghalaya

Correct answer

C. Mizoram

Explanation

The correct answer is C, Mizoram. The NCERT Class 11 geography book describes Mizoram as the 'Molassis basin', made up of soft, unconsolidated deposits. Molasse is a geologists' word for soft sediments washed down from rising mountains and laid down in a basin; in Mizoram these young rocks were later folded into the north–south ridges of the Purvanchal hills that run along India's eastern border. Because the rocks are soft, the hills of Mizoram are prone to landslides in the monsoon. The Purvanchal also includes the Patkai hills, the Naga hills and the Manipur hills, and the Barak is an important river of Manipur and Mizoram. A is wrong because Tripura is not the state given this name. B is wrong because Assam is mostly the flat Brahmaputra valley. D is wrong because the Meghalaya plateau, with the Garo, Khasi and Jaintia hills, is an old block of hard rock that belongs to the Peninsular plateau. Exam tip: NCERT line: Mizoram = 'Molassis basin'; Meghalaya = detached part of the Peninsular plateau.

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.