CSS :: Ecology and General Silviculture

@ : Home > Forestry > Ecology and General Silviculture

Azolla is used as a biofertilizer because it:

[A].	Multiplies very fast to produce massive biomass	[B].	Has association of nitrogen-fixing Rhizobium
[C].	Has association nitrogen fixing Cyanobacteria	[D].	Has association of mycorrhiza

Answer: Option C