7th Class Science Wastewater Story Question Bank Wastewater Story

  • question_answer DIRECTIONS: Read the passage given below and answer the questions that follow. Passage - 3 Poor sanitation and contaminated drinking water is a cause of large number of diseases. To improve sanitation, low cost on-site sewage disposal systems are being encouraged. Untreated human excreta is a health hazard because it may cause

    A) water pollution            

    B) soil pollution

    C) Both the above           

    D) None of these

    Correct Answer: C

    Solution :

    Both the above


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