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KVPY Sample Paper KVPY Stream-SX Model Paper-28

  • question_answer
    When domestic sewage mixes with river water:

    A) Small animals like rats will die after drinking river water

    B) The increased microbial activity releases micro-nutrients such as Iron

    C) The increased microbial activity uses up dissolved oxygen

    D) The river water is still suitable for drinking as Impurities are only about 0.1%

    Correct Answer: C

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