Multiple choice

The microbes commonly called biological nitrogen fixers are found in _____________________.

  1. leaves of plants

  2. root nodules of leguminous plants

  3. waste and dead plants

  4. air

  5. soil

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Yes, it is the correct answer as the microbes reside in the root nodules of leguminous plants. They can fix nitrogen from the air into soil and increase the soil fertility.