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Railways Sample Paper RRBs Assistant Loco Pilot and Technician CBT STAGE-I Sample Paper-3

  • question_answer
    Pollution of big cities can be controlled to large extent by

    A)  Wide roads and factories away from city

    B)  Cleanliness drive and proper use of pesticides

    C)  Proper sewage and proper exist of chemicals from factories

    D)  All of the above

    Correct Answer: D

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