Multiple choice general knowledge

Which of the following crops would be preferred for sowing in order to enrich the soil with nitrogen?

  1. Wheat

  2. Mustard

  3. Sunflower

  4. Gram
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Gram (chana) is a leguminous crop that has a symbiotic relationship with Rhizobium bacteria in its root nodules. These bacteria convert atmospheric nitrogen into nitrogen compounds that enrich the soil. This natural nitrogen fixation makes legumes ideal for improving soil fertility. Wheat, mustard, and sunflower are non-leguminous crops that do not have this nitrogen-fixing ability.

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