Question

which of the following is not an air pollutant? sulfur oxides ozone oxygen carbon monoxide

Explanation:

• Sulfur oxides are pollutants that contribute to acid rain.
• Ozone (ground - level) is a harmful air pollutant.
• Carbon monoxide is a toxic air pollutant.
• Oxygen (\(O_2\)) is a natural and essential component of air for respiration and not an air pollutant.

Answer:

oxygen