65.Which one of the following is not a greenhouse gas? A. CFCs B. CH4 C. NO2 D. CO2
option c. A greenhouse gas is a gas that produces heat in the atmosphere as it increases. It also gets stuck in the environment and can not leave the internal layer of the Earth’s atmosphere. These gases introduce pollution because they contaminate the environment. Examples of greenhouse gases: Carbon dioxides, Methane, Chlorofluorocarbon, sulphur dioxide. Whereas oxygen, nitrogen, and argon are not examples of greenhouse gases.
