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  3. 9th Class
  4. Social Science
  5. Drainage

9th Class Social Science Drainage Question Bank Very Short Answer Type - Drainage

  • question_answer
    How growing demand of water from rivers, affects the quality of water

    Answer:

    More and more water is drained out of the rivers for growing domestic municipal, industrial and agricultural demands of water, which reduces their volume. On the other hand, a heavy load of untreated sewage &: industrial effluents are emptied into the rivers, affecting the quality of water.


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