The main sources of biofertilisers are
$(a)$ Bacteria
$(b)$ Cyanobacteria
$(c)$ Fungi
$(d)$ Protists
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
$(a), (c), (d)$
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