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NEET Biology Organisms and population Question Bank Bio Geochemical Cycle

  • question_answer
    Maximum contribution of \[{{O}_{2}}\] is from [CBSE PMT 1989]

    A) Phytoplankton

    B) Grasslands

    C) Herbs and shrubs

    D) Dense forest

    Correct Answer: A

    Solution :

    Major source of\[{{O}_{2}}\]liberation is photosynthesis and about 90% of total photosynthesis is done by phytoplankton.


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