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  9. Q87

JPSC 2023 · Question 87 of 199

Alkaline soils can be improved

Indian Geography

  1. Aby the use of lime
  2. Bby the use of gypsumCorrect
  3. Cby the use of saline water
  4. DNone of the above

Answer: B. by the use of gypsum

Explanation

Alkaline (sodic) soils are reclaimed by applying gypsum, which replaces exchangeable sodium with calcium; lime is used to correct acidic soils, not alkaline ones. Note: the official model answer key marks [D] (None of the above), which is incorrect.

Source: JPSC Combined Civil Services (PT) 2023 (Advt 01/2024), GS Paper-I, Booklet Series-B; official model key answer corrected (see explanation)

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