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Non-symbiotic nitrogen fixation takes pl...

Non-symbiotic nitrogen fixation takes place by :
(A) Nostoc, Azotobacter, Clostridium
(B) Anabaena, Nostoc, Rhizobium
(C) Azotobacter, Nitrosomonas, Rhizobium
(D) Anabaena, Nitrosomonas, Pseudomonas

A

Nostoc, Azotobacter, Clostridium

B

Anabena, Nostoc, Rhizobium

C

Azotobacter, Nitrosomonas, Rhizobium

D

Anabena, Nitrosomonas, Pseudomonas

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