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. Various water borne diseases are

    A) hepatitis         

    B) meningitis

    C) cholera            

    D) All of these

    Correct Answer: D

    Solution :

    All of these

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