Multiple choice general knowledge

Which of the following crops helps in nitrogen fixation?

  1. Rice

  2. Wheat

  3. Beans

  4. Maize
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Beans and other legumes (like pulses) have a symbiotic relationship with Rhizobia bacteria that live in nodules on their roots. These bacteria convert atmospheric nitrogen into ammonia, which plants can use. This process is called nitrogen fixation. Rice, wheat, and maize are cereals that do not have this nitrogen-fixing ability.

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