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  4. Ecology And Environment

SSC Ecology And Environment Sample Paper NCERT Sample Paper-4

  • question_answer
    Phytoplanktons are important biotic components of

    A)  Forest ecosystem

    B)  pond ecosystem

    C)  Grassland ecosystem

    D)  all of these

    Correct Answer: B

    Solution :

    [b] Phytoplanktons are the floating and drifting flora like Nostoc, Chlamydomonas, diatoms and other green and blue-green algae. They remain aggregated on water surface in pond ecosystem.


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