Azolla is used as biofertilizer as it has [DPMT 2001] – McqOptions

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1.	Azolla is used as biofertilizer as it has [DPMT 2001]
A.	Rhizobium
B.	Cyanobacteria
C.	Mycorrhiza
D.	Large quantity of humus
Answer» C. Mycorrhiza

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