Biology · PYQ NEET UG 2019(2)
हिन्दीAmong the following pairs of microbes, which pair has both the microbes that can be used as biofertilizers?
Correct answer · Option 4
Cyanobacteria and Rhizobium
Explanation
Both Cyanobacteria (like Anabaena, Nostoc) and Rhizobium act as biological nitrogen fixers and are widely used as biofertilizers.