4th Class Science Our Environment Question Bank Our Environment

  • question_answer
    Which of the following will NOT cause water pollution?

    A)  Releasing harmful gases into the air

    B)  Using recycled waste water for cleaning

    C)  Putting unwanted waste in abandoned fields located nearby a water body

    D)  Throwing industrial and chemical waste products into rivers

    Correct Answer: D

    Solution :

    Using recycled waste water for cleaning is a method of conservation of water.


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