NO₂ combines with hydrocarbon emissions from vehicles to form photochemical smog.

Depletion of ozone layer makes way for harmful UV radiations to enter Earth's atmosphere, leading to skin cancer.

Both SO₂ and SO₃ form acids with rainwater.

Black lung disease is caused by mine dust.

Effect of pollution strongly manifests in leaves.

The ores from combustion of sulphur release H₂S gas, which pollutes the air.

Chlorine is produced during bleaching of cotton.

Planting trees like daucus carota helps in controlling air pollution.

Air pollution can induce neuroinflammation, oxidative stress and microglial activation that can contribute to CNS pathology.

Coal and oil combustion releases sulphur dioxide in the air.

Cement kiln are the solid particles which act as air pollutants.

Hydrogen fluoride causes necrosis and chlorosis in plants.

CO combines with haemoglobin to form carboxyhaemoglobin.

Hydrogen is not a pollutant.

The gas which caused Bhopal gas tragedy of 1984 was methyl iso-cyanate.