UPSC Prelims 2021·GS1·geography·indian geography

The black cotton soil of India has been formed due to the weathering of

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Last updated 23 May 2026, 3:31 pm IST
  1. Abrown forest soil
  2. Bfissure volcanic rockCorrect
  3. Cgranite and schist
  4. Dshale and limestone

Explanation

The black cotton soils, also known as Regur soils, are characteristic of the Deccan Trap region of India. These soils are formed from the in-situ weathering of basaltic lava rocks. Basaltic rocks are a type of extrusive igneous rock that originated from fissure volcanic eruptions, where lava flowed out from long fissures or cracks in the Earth's crust. The rich clay content, particularly montmorillonite, gives them their characteristic black color and high water-retention capacity.
geography: The black cotton soil of India has been formed due to the weathering of

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