Air pollution is best defined as ________.
any gases in Earth's atmosphere in trace amounts
small particles in the atmosphere arising from volatile organic compounds
gases or particles present in high enough concentrations in the atmosphere to harm humans, other organisms and structures
suspended particles of gases that contain small amounts of solids and liquids
organic chemicals that can vaporize into the air
Air pollution is best defined as gases or particles present in high enough concentrations in the atmosphere to harm humans, other organisms and structures.