Multiple choice

The nitrogen fixing bacteria are

  1. Rhizobium

  2. Aztobacter

  3. Cyno bacteria

  4. All of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Rhizobium, Azotobacter, and Cyanobacteria are all known for their ability to fix atmospheric nitrogen into a form plants can use. Therefore, 'All of these' is correct.

Keep practicing — related questions