7th Class Science Wastewater Story Question Bank Wastewater Story

  • question_answer Treatment plants

    A) reduce pollutants in waste water to a level where nature can take care of it.

    B) makes the waste water free of all pollutants

    C) Both the above are correct

    D) None of these

    Correct Answer: A

    Solution :

    reduce pollutants in waste water to a level where nature can take care of it.

adversite


You need to login to perform this action.
You will be redirected in 3 sec spinner

Free
Videos