2. Sample Papers
  3. SSC
  4. Ecology And Environment

SSC Ecology And Environment Sample Paper NCERT Sample Paper-2

  • question_answer
    BOD stands for

    A)  Biotic oxide demand

    B)  Base of degradation

    C)  Biotic oxygen deduction

    D)  Biological oxygen demand

    Correct Answer: D

    Solution :

    [d] The amount of oxygen required by microorganism is called Biological (Biochemical) Oxygen Demand (BOD). Clean water has very low BOD whereas polluted water has very high BOD.


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