The Aravalli Range is an example of which type of mountains?
- A.Young fold mountains
- B.The oldest fold mountains of India
- C.Block mountains formed by faulting
- D.Volcanic mountains
Correct answer
Explanation
The correct answer is B, the oldest fold mountains of India. The Aravalli was folded in Precambrian times, long before the Himalaya existed, and hundreds of millions of years of erosion have worn it down to a chain of residual hills whose rocks carry zinc, lead, copper and marble. It runs about 692 kilometres from Palanpur in Gujarat to the Delhi ridge, of which roughly 550 kilometres lie in Rajasthan.
Option A, young fold mountains, describes the Himalaya, raised by the collision of the Indian and Eurasian plates and still rising, which is the opposite of the Aravalli's story. Option C, block mountains, are raised between faults, as in the Satpura and the Vindhya system of central India. Option D, volcanic mountains, are built of erupted material, as Barren Island is. The examiner's point is age: the Aravalli is the older range and the Himalaya the younger.
Read the full article: Aravalli Range and Thar Desert: Peaks, Passes and Dunes
Practice Questions
View allGuru Shikhar, the highest peak of the Aravalli Range, lies in which district of Rajasthan?
- A.Udaipur
- B.Sirohi
- C.Rajsamand
- D.Ajmer
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Guru Shikhar stands on Mount Abu in Sirohi district and, at 1,722 metres, is the highest point of the Aravalli Range and of Rajasthan.
Read the full explanation →The Luni river of Rajasthan rises near Ajmer and finally drains into
- A.The Arabian Sea at Kutch's Gulf
- B.The Rann of Kachchh
- C.The Chambal river
- D.The Sambhar lake
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The Luni rises in the Naga hills near Ajmer in the Aravalli, flows south-west through Pali, Jodhpur, Barmer and Jalore and loses itself in the marshes of the Rann of Kachchh in Gujarat.
Read the full explanation →Sambhar, the largest inland salt lake of India, lies in which state?
- A.Gujarat
- B.Rajasthan
- C.Haryana
- D.Madhya Pradesh
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Sambhar lake spreads across the Jaipur and Nagaur districts of Rajasthan and is the largest inland salt-water lake in India, a major source of common salt and a wetland where flamingos gather in winter.
Read the full explanation →The Desert National Park, known for the great Indian bustard, is spread over which districts of Rajasthan?
- A.Jodhpur and Pali
- B.Jaisalmer and Barmer
- C.Bikaner and Churu
- D.Nagaur and Jalore
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The Desert National Park covers about 3,162 square kilometres in the Jaisalmer and Barmer districts and protects the sand dunes, salt flats and thorn scrub of the Thar along with the great Indian bustard, called godawan locally, which is the state bird of Rajasthan.
Read the full explanation →The Indira Gandhi Canal, which carries water into the north-western desert of Rajasthan, takes off from which barrage?
- A.Bhakra dam
- B.Harike barrage
- C.Hathnikund barrage
- D.Kota barrage
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The canal, originally called the Rajasthan Canal and renamed after Indira Gandhi, begins at the Harike barrage in Punjab, built just below the point where the Beas joins the Sutlej, and carries water about 649 kilometres through Sri Ganganagar, Hanumangarh, Bikaner and Jaisalmer.
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