NeetBiomoleculesNEET 2022 Phase 2MCQ+4 / -12022ENHIWhich of the following pair represents free living nitrogen fixing aerobic bacteria?APseudomonas and ThiobacillusBRhizobium and FrankiaCAzotobacter and BeijernickiaDAnabaena and RhodospirillumCheck AnswerClear SelectionReveal AnswerShow Explanation