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8.Microbes in Human Welfare
medium
The main sources of biofertilisers are
$(a)$ Bacteria
$(b)$ Cyanobacteria
$(c)$ Fungi
$(d)$ Protists
A
$(a), (b), (c)$
B
$(a), (b), (d)$
C
$(b), (c), (d)$
D
$(a), (c), (d)$
Solution
The main source of biofertilisers are
Bacteria -Photoautotrophs and chemoautotrophs; free-living and symbiotic forms
Cyanobacteria $e.g.$, Nostoc & Anabaena
Fungi increases surface area for absorption.
Standard 12
Biology
