Question

which of the following are likely to be present in photochemical smog?
1)Sulphur dioxide
2) sulphur
3) chlorofluorocarbons
4) ozone

Answer 1

sulphur dioxide is likely to present

Answer 2

Photochemical smog

3) chlorofluorocarbons

Smog can also be called as smoke fog, is an air pollution. Two types of fog are there namely sulfurous and photochemical smog.

Photochemical smog is produced when ultraviolet light from the sun reacts with nitrogen oxides present in the atmosphere, it can be seen during morning and afternoon time. Disease like bronchitis, rickets and breathing problem are name of some hazardous effect on health due to smog.