Which range is regarded as the oldest fold mountain system in India?
- A.Satpura
- B.Aravalli
- C.Shiwalik
- D.Vindhya
Correct answer
Explanation
The correct answer is B, Aravalli. The Aravalli was folded in the Precambrian era, hundreds of millions of years before the Himalaya rose, and long erosion has reduced it to a chain of low residual ridges running north-east from Gujarat through Rajasthan towards Delhi. Its highest point, Guru Shikhar near Mount Abu, is only about 1,722 metres.
Option A, the Satpura, is a block range of the peninsula, younger than the Aravalli and raised between the Narmada and Tapi troughs. Option C, the Shiwalik, is the youngest range in India, made of loose gravel and sediment shed by the rising Himalaya in recent geological time, so it is the opposite of the right answer. Option D, the Vindhya, is a scarp of sedimentary rock north of the Narmada that acts as the traditional divide between north and south India, but it is not a folded range of the Aravalli's antiquity.
Read the full article: Physiography of India: Physical Divisions and PYQs
Practice Questions
View allWhere is Lakshadweep located?
- A.Bay of Bengal
- B.Pacific ocean
- C.Arabian sea
- D.Atlantic ocean
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Lakshadweep is a group of small coral islands, atolls and reefs lying off the Malabar coast of Kerala in the Arabian Sea, built on a submarine ridge.
Read the full explanation →The narrow, pebble-studded belt at the foot of the Shiwaliks, where the streams descending from the mountains disappear underground, is called the
- A.Terai
- B.Bhabar
- C.Bhangar
- D.Khadar
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Where the rivers leave the hills they drop their coarsest load, and the resulting belt of gravel and pebbles is so porous that the smaller streams sink into it and vanish.
Read the full explanation →Which of the following is the highest peak of peninsular India?
- A.Doda Betta
- B.Anaimudi
- C.Mahendragiri
- D.Guru Shikhar
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Anaimudi stands in the Anaimalai hills of Kerala, where the Anaimalai, Palani and Cardamom hills meet, and rises to about 2,695 metres.
Read the full explanation →The Narmada and the Tapi are unusual among peninsular rivers because they
- A.rise in the Himalaya
- B.flow through rift valleys and drain into the Arabian Sea
- C.form large deltas on the eastern coast
- D.are entirely seasonal streams
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Both rivers flow westward along faulted troughs, or rift valleys, that lie between the Vindhya and the Satpura ranges, and both empty into the Arabian Sea through estuaries instead of deltas.
Read the full explanation →The Palghat Gap, an important break in the Western Ghats, lies between which two hill groups?
- A.Nilgiri and Anaimalai hills
- B.Cardamom and Palani hills
- C.Satpura and Maikal hills
- D.Javadi and Shevaroy hills
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The Palghat Gap is a wide trough about thirty kilometres across, and it is the principal natural break in the otherwise continuous wall of the Western Ghats.
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