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Microbes in Human Welfare — BIOLOGY STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 ScienceBIOLOGYMicrobes in Human Welfare1 Mark
MCQ
Which one is a biofertilizer:
  • A
    NPK mixture
  • B
    Rhizobia in legume roots
  • C
    Rhizobia in farmyard manure
  • D
    Green manure
✓

Answer

  1. Rhizobia in legume roots

Explanation:

All cyanophyceae member's are biofertilizers because they has fixing of NZ e.g. Nostoc. Rebulla, Rhizobia etc. 

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