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Teaching Environmental Studies How We Make Things Question Bank Questions - How We Make Things

  • question_answer
    In order to separate a mixture of sand and salt which one of the following four sequences of processes has to be used? (CTET Jan 2012)

    A)  Filtration, decantation, evaporation, sedimentation

    B)  Evaporation, sedimentation, decantation, filtration

    C)  Decantation, sedimentation, evaporation, filtration

    D)  Sedimentation, decantation, filtration, evaporation

    Correct Answer: A

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