9th Class Science Natural resources Question Bank 9th CBSE Science Natural resources

  • question_answer
      Name the properties of potable drinking water.

    Answer:

                      (i) It should be clear and colourless. (ii) It must not be foul-smelling. (iii) It must have sufficient amount of oxygen dissolved in it. (iv) It should be free from harmful microorganisms. (v) It must also be free from various chemical pollutants that are injurious to our health.


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