Anabaena and Nostoc are examples of:
ABacteria-only nitrogen fixers
BFree-living protozoa decomposers
CCyanobacterial biofertilisers
DFungal mycorrhizal partners
Answer & Solution
Correct answer: C. Cyanobacterial biofertilisers
Anabaena, Nostoc are CYANOBACTERIA (blue-green algae) that fix atmospheric nitrogen in paddy fields. They photosynthesise and enrich soil with bioavailable nitrogen.
Related questions
Bacteria producing biogas are known as:Biogas produced from dung is commonly called:The remaining sludge is digested in tanks that are:The sediment settling after secondary treatment is called activated:Masses of bacteria with fungal filaments in aeration tanks are called:In secondary treatment the effluent goes into large tanks that are:Solids settling out in primary treatment form the primary:Sewage treatment begins with a stage that removes particles by: