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Discussion :: Environmental Science

  1. What is the man-made greenhouse gas known as?

  2. A.

     Carbon dioxide

    B.

     HFC

    C.

     Ozone

    D.

     Water Vapour

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    Answer : Option B

    Explanation :

    Many greenhouse gases occur naturally in the atmosphere, such as carbon dioxide, methane, water vapor, and nitrous oxide, while others are synthetic. Those that are man-made include the chlorofluorocarbons (CFCs), hydrofluorocarbons (HFCs) and Perfluorocarbons (PFCs), as well as sulfur hexafluoride (SF6).


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