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Environmental C...

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  • Question 1
    4 / -1

    Eutrophication of a lake means, it

  • Question 2
    4 / -1

    Which one of the following is mainly responsible for depletion of ozone layer?

  • Question 3
    4 / -1

    Photochemical smog is due to the presence of:

  • Question 4
    4 / -1

    Which of the following is secondary pollutant?

  • Question 5
    4 / -1

    In which part of the atmosphere, does the freon remain unchanged?

  • Question 6
    4 / -1

    Which one of the following elements, is a component of a compound essential for photosynthesis ?

  • Question 7
    4 / -1

    Photochemical oxidants, i.e. PAN or PBN are formed by:

  • Question 8
    4 / -1

    Use of chlorofluorocarbons is not encouraged because:

  • Question 9
    4 / -1

    Alum is a water purifier, because it :

  • Question 10
    4 / -1

    Ozone layer is being depleted. This is due to :

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