Question

Mention any one cause of air pollution.

Answer 1

Motor vehicles are a major source of air pollution throughout the urban areas of the world. Motor vehicles including trucks, trains, aircraft, two-wheelers, three-wheelers, light motor vehicles, tractors and other forms of transport, contribute to air pollution by emitting hydrocarbons, carbon monoxide, lead, nitrogen oxides and so on. These sources are more harmful when the engines are not adjusted and tuned properly. Also diesel engines, when misused or badly adjusted, are capable of emitting black smoke and foul-smelling fumes.