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Biology
Azolla is used as a biofertilizer because it
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Q. Azolla is used as a biofertilizer because it
AIIMS
AIIMS 2003
A
multiplies very fast to produce massive biomass
B
has association of nitrogen ‐ fixing Rhizobium
C
has association of nitrogen ‐ fixing cyanobacteria
D
has association of mycorrhiza
Solution:
Azolla is a pteridophyte and used as a biofertilizer because it has association with nitrogenfixing cyanobacteria Anabaena azollae.