2015 · Q100
Which one among the following substances is not a 'green house' gas?
general-sciencebiotech-environment-science
- AWater vapour
- BChlorofluorocarbon
- CMethane
- DNitrogen
Explanation
Water vapour, chlorofluorocarbons and methane all absorb infrared radiation and are greenhouse gases. Nitrogen, which makes up most of the atmosphere, is transparent to infrared and is not a greenhouse gas. Hence nitrogen is not a greenhouse gas.