Which of the following is free-living aerobic non- photosynthetic nitrogen fixing bacterium [CBSE PMT 1997; BHU 2003]
A) Rhizobium
B) Azotobacter
C) Nostoc
D) Azospirillum
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The answer to your question is B
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hiii,
AZOTOBACTER is free-living aerobic non- photosynthetic nitrogen fixing bacterium
hope helps
AZOTOBACTER is free-living aerobic non- photosynthetic nitrogen fixing bacterium
hope helps
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