2. Solved Papers
  3. NEET

NEET AIPMT SOLVED PAPER 1999

  • question_answer
                The aquatic fern, which is an excellent biofertiliser, is:                                                                       

    A)             Azolla    

    B)             Pteridium

    C)             Satvinia 

    D)                 Marsilia

    Correct Answer: A

    Solution :

                Azolla leaves harbour Anabaena colonies which fix atmospheric nitrogen. The nitrogen rich Azolla is used as biofertiliser.


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