Strategies For Enhancement In Food Production Question 478

Question: Azotobacter and Bacillus polymyxa are [CBSE PMT 1996]

Options:

A) Decomposers

B) Nonsymbiotic nitrogen fixers

C) Symbiotic nitrogen fixers

D) Pathogenic bacteria

Show Answer

Answer:

Correct Answer: B

Solution:

Azotobacter and Bacillus polymyxa are free living or non-symbiotic nitrogen fixing bacteria of soil, which increase fertility of soil and hence yield of crop plants.

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