MCQ
They help in increasing soil fertility:
  • A
    Pseudomonas and cereals
  • B
    Bacillus and Penicillium
  • Salvinia and Marsilea
  • D
    Nostoc and legumes

Answer

Correct option: C.
Salvinia and Marsilea
Nostoc and legumes help in increasing soil fertility by nitrogen fixation in the soil.

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