Question

In 1905, a Glasgow public health official, Dr H A Des Voeux coined a term to describe a condition had
impaired visibility due to the presence of air pollutants. The term was ________.
a) Haze
b) Smog
c) Mist
d) Fog

Answer 1

Impaired Visibilty due to presence of air pollutants is called Smog.

Answer 2

b) smog is the correct answer