Which of the following is a free living aerobic nitrogen fixing bacterium present in the soil?
Nitrosomonas
Rhizobium
Azotobacter
Pseudomonas
A
Pseudomonas
B
Nitrosomonas
C
Azotobacter
D
Rhizobium
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Solution
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Azotobacter and Beijerinckia are aerobic free living saprophytic nitrogen fixing bacteria, while Clostridium is anaerobic free living saprotrophic nitrogen fixing bacterium.
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