1.

What is the man-made greenhouse gas known as?

Answer»

 HFC



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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