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Pollution of Ai...

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  • Question 1
    1 / -0

    Combustion can not take place without:

  • Question 2
    1 / -0

    Which of these statements are true about air?
    (i) Air is a mixture of several types of gases.
    (ii) Air exerts pressure.
    (iii) The composition of air is constant in the atmosphere.

  • Question 3
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    Main constituent in air is:

  • Question 4
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    If heat radiated from the earth's surface is retained, outcome will be:

  • Question 5
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    Industrial plants should be based on recycling operations as it helps to prevent disposal of wastes into natural waters but also extraction of products from waste. This measure is for _________.

  • Question 6
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    Which of them are water pollutants?

  • Question 7
    1 / -0

    Ozone hole is maximum spread over:

  • Question 8
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    Which of the following pose threat to historical monument Taj Mahal?

  • Question 9
    1 / -0

    Global warming is a serious outcome of:

  • Question 10
    1 / -0

    Contamination of water bodies when pollutants are directly or indirectly discharged into water bodies without adequate treatment to remove harmful components is called_____________.

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