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8.Microbes in Human Welfare
medium
Biofertilisers
A
Increase dependence on chemical fertilisers
B
Are organisms that enrich the nutrient quality of soil
C
Include potash, phosphatic and nitrogenous organic and chemical compounds
D
Are used regularly in the fields to deplete soil nutrients
Solution
Biofertilizers are organisms which fix atmospheric nitrogen that enrich the nutrient quality of soil.
Standard 12
Biology
