MCQ
Q.
How much of Thar Desert in India falls in Rajasthan ?
Correct Answer: B
The correct answer is 60%.
Key Points
- Rajasthan is India's only state that has a real hot desert within its territory.
- Vast stretches of sand dunes of different kinds - longitudinal dunes, barchans, transverse dunes - are characterized by physiography.
- Almost 60% area of the THAR Desert in India falls in Rajasthan.
Additional Information
- In reality, a portion of the Thar Desert extending into Pakistan is the Great Indian Desert, covering the districts of Barmer, Jaisalmer, Jalor, Jodhpur, Bikaner, Ganganagar, Churu, Jhunjhunun, Sikar, Nagaur, and Pali.
- The total area of the arid tract is 233,100 square kilometres or approximately three-fifths of the Rajasthan State.
- The rock exposures in the Thar region are predominantly of Aravali gneiss and schist, Malani granites, and Vindhyans, indicating that Thar is part of the peninsular block's western extension.
- Jurassic and Eocene marine formations belong to the rock exposures in the Barmer - Jaisalmer - Bikaner tract to the extreme west and north, whereas those in the central area of Jalor - Siwana - Jodhpur - Khinwasar tract are of igneous rocks, often overlaid by Vindhyan sedimentaries.
- There is also proof of a great culture that had flourished in the past there.
- The deep-seated formations, such as the Jaisalmer Lathis, are small potable water zones with local recharge facilities.
- The blown sand superimposes large stretches of alluvium contributed by ancient rivers in their submerged channels.
- Recurring aridity has endowed this tract with items such as gypsum, potash, common salt, at different stages of geological times. Phosphorus, and bentonitic and ceramic clays.
Important Points
- The question has been cancelled
