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    Question

    The effluents of which among the following industries

    are considered to be the main cause for lowering the pH value of river water?
    A Alcohol distillery industries Correct Answer Incorrect Answer
    B Plastic cup manufacturing industries Correct Answer Incorrect Answer
    C Soap and detergent industries Correct Answer Incorrect Answer
    D Lead battery manufacturing industries Correct Answer Incorrect Answer

    Solution

    The correct answer is A

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