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8.Microbes in Human Welfare
medium
Biofertilizers include
A
Nitrogen fixing bacteria
B
Nitrogen fixing cyanobacteria
C
Both bacteria and cyanobacteria
D
Bacteria, cyanobactria and mycorrhizal fungi
Solution
(d)Biofertilizers are of three types : nitrogen fixing bacteria, nitrogen fixing cyanobacteria and mycorrhiza.
Standard 12
Biology