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Some bacteria are able to fix nitrogen from the atmosphere to enrich soil with nitrogen and increase its fertility. These microbes are commonly called __________

  1. Biological nitrogen fixers
  2. Algae
  3. Antibodies
  4. None of these

Answer: Biological nitrogen fixers

Long Answer:

There are some bacteria that are able to fix nitrogen from the atmosphere to enrich soil with nitrogen and increase its fertility. These microbes are commonly called biological nitrogen fixers.

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