MCQ
Azolla is used as a biofertilizer, because it:
  • A
    Multiplies very fast to produce massive biomass.
  • B
    Has association of nitrogen$-$fixing Rhizobium.
  • Has association of nitrogen$-$fixing Cyanobacteria.
  • D
    Has asssociation of mycorrhiza

Answer

Correct option: C.
Has association of nitrogen$-$fixing Cyanobacteria.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free