2009 · Q100
Which one of the following is a free-living bacterium that helps in nitrogen fixation in soil?
General KnowledgeBiology
- AAzotobacter
- BAnabaena
- CAzolla
- DNostoc
Explanation
Azotobacter is a free-living nitrogen-fixing bacterium in soil.
Which one of the following is a free-living bacterium that helps in nitrogen fixation in soil?
Explanation
Azotobacter is a free-living nitrogen-fixing bacterium in soil.