Azolla is used as a biofertiliser because it - Vidyadip

MCQ

Azolla is used as a biofertiliser because it

A
Has association of mycorrhiza
B
Multiplies at faster rate to produce massive biomass
C
Has association of nitrogen-fixing Rhizobium
✓
Has association of nitrogen-fixing cyanobacteria

✓

Answer

Correct option: D.

Has association of nitrogen-fixing cyanobacteria

d
Azolla is a pteridophyte and it is used as a biofertiliser because it has association with nitrogen-fixing cyanobacteria called Anabaena azollae.

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