Question

which bacteria is
called as biological nitrogen fixers?​

Answer 1

Answer:

rizobium bacteria

hope this helps you

Answer 2

Explanation:

Examples of this type of nitrogen-fixing bacteria include species of Azotobacter, Bacillus, Clostridium, and Klebsiella. As previously noted, these organisms must find their own source of energy, typically by oxidizing organic molecules released by other organisms or from decomposition.