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Air Pollution T...

TIME LEFT - 07:59 MIN
  • Question 1
    1 / -0

    Which of the following statements is true for potable water?

  • Question 2
    1 / -0

    What is meant by the term contamination?

  • Question 3
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    Which of the following are non-point sources of water pollution?

  • Question 4
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    BOD is ______ in polluted water and ______ in potable water.

  • Question 5
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    The underground water is mainly polluted due to

  • Question 6
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    Fish die in water polluted by sewage due to

  • Question 7
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    Liquid waste that is discharged from the industries is referred to as industrial ___________.

  • Question 8
    1 / -0

    Which of the following factors causes the removal of oxygen from the water, consequently killing aquatic plants and animals?

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