Free living bacteria responsible for the fixation of atmospheric nitrogen is

Options :
  1. Azotobacter
  2. Streptococcus
  3. Staphylococcus
  4. None of the above


Answer and Explanation :-

Answer: Option 1

Explanation:

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All human beings should try to learn before they die what they are running from, and to, and why.
-James Thurber