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STD 12 - 8. microbes in human welfare — BIOLOGY STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 ScienceBIOLOGYSTD 12 - 8. microbes in human welfare1 Mark
MCQ
Which of the following serve as biofertiliser in paddy fields?
  • A
    Anabaena
  • B
    Azospirillum
  • C
    Nostoc
  • ✓
    Both $(a)$ and $(c)$
✓

Answer

Correct option: D.
Both $(a)$ and $(c)$
d
Nostoc, Anabaena and Oscillatoria are cyanobacteria. They fix atmospheric nitrogen and increase the organic matter of soil through their photosynthetic activity. Blue-green algae increase the soil fertility by adding organic matter to the soil

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