Question

Which of the following will not cause any atmospheric pollution?

• A. Hydrogen
• B. Sulphur dioxide
• C. Carbon dioxide
• D. Carbon monoxide

Answer 1

The correct option is A Hydrogen

The air pollutants include hydrocarbons (HC), carbon monoxide (CO), nitrogen oxides (NOx), particulate matter (PM), sulfur dioxide ($S{O}_2$), ozone, volatile organic compounds (VOCs), hydrogen sulfide ($H_{2}S$), and toxic air contaminants such as lead (Pb). Greenhouse gases such as carbon dioxide ($C{O}_2$), nitrous oxide ($N_{2}O$), methane ($C{H}_4$), and high-global warming potential gases (e.g., perfluorocarbons, sulfur hexafluoride, hydrofluorocarbons, nitrogen trifluoride, hydrofluoroethers, and ozone depleting substances) have been implicated in global warming effects.