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Natural Resources — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceNatural Resources1 Mark
MCQ
Legume plants are important because they :
  • ✓
    Help in nitrogen fixation.
  • B
    Do not help in nitrogen fixation.
  • C
    Increase the soil fertility.
  • D
    All of the above.
✓

Answer

Correct option: A.
Help in nitrogen fixation.
Legume plants belongs to Fabaceae family having root nodules found in the symbiotic association with nitrogen-fixing bacteria.
These bacteria such as Rhizobium have the ability to take nitrogen gas $(N_2​)$ out of the air and convert it into ammonia or nitrate that is usable to the host plant. This process is called as nitrogen fixation.
Thus, legume plants are important because they helps in nitrogen fixation.

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