Question

Which substance is a greenhouse gas that is emitted by human activities, is the most widespread, and remains in the air the longest?

Answer 1

Answer:

In general, fluorinated gases are the most potent and longest lasting type of greenhouse gases emitted by human activities. There are four main categories of fluorinated gases—hydrofluorocarbons (HFCs), perfluorocarbons (PFCs), sulfur hexafluoride (SF6), and nitrogen trifluoride ( NF3)

Answer 2

Explanation:

fluorinated gases are the most potent and longest lasting type of greenhouse gases emitted by human activities.

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