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  3. SSC

SSC Sample Paper SSC CGL - Sample Paper-25

  • question_answer
    Which one of the following is a freeliving bacterium that helps in nitrogen fixation in soil?

    A) Azotobacter       

    B) Anabaena

    C) Azolla               

    D) Nostoc

    Correct Answer: A

    Solution :

    Not Available    


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