A

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Q. Alluvial soils are rich soil for crop cultivation but are poor in–

  • (A) inorganic material
  • (B) organic material
  • (C) nitrogen and humus
  • (D) humus
  • Correct Answer - Option(C)
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Explanation by: Admin

Alluvial soils are fertile and rich in minerals but are often poor in nitrogen and humus (organic matter), which are essential for soil fertility.

  • Farmers often add fertilizers to improve nitrogen content.

So, alluvial soils are poor in nitrogen and humus — option (C).

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