Oxygen is NOT a common air pollutant. The common air pollutants typically include nitrogen oxides, carbon monoxide, and chlorofluorocarbons (CFCs). Oxygen is a natural component of the atmosphere and is essential for life, rather than a pollutant.
Which of the following is NOT a common air pollutant?
nitrogen oxides
oxygen
carbon monoxide
chlorofluorocarbons
1 answer
1 answer