How many major greenhouse gases are there?

Correct answer: 4

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What people think about it: 3 Comments
Newt
Newt
Player #7719043, of course water vapour is a gas, it is just not an elemental gas. Similarly Methane is a gas of a compound of Carbon and Hydrogen, and Carbon Dioxide is a gas of a compound of Carbon and Oxygen.
YSL
YSL
greenhouse gases under the Kyoto Protocol: Carbon dioxide (CO2) Methane (CH4) Nitrous oxide (N2O) Hydrofluorocarbons (HFCs) Perfluorocarbons (PFCs) Sulphur hexafluoride (SF6) Nitrogen trifluoride (NF3)
ChewyGazelle68623
ChewyGazelle68623
I said 3!! WRONG!!