Question

Which of the following options means that the fog which has been polluted by smoke?

A. Skog

B. Pollutant

C. Clog

D. Smog

1. A
2. D
3. B
4. C

Answer 1

Correct Answer - Option 2 : D

The correct answer is Smog.

• Smog means that the fog has been polluted by smoke.
  • ​Smog is a type of intense air pollution.
  • The word "smog" was coined in the early 20th century and is a contraction of the words smoke and fog to refer to smoky fog due to its opacity, and odor.
  • The word was then intended to refer to what was sometimes known as pea soup fog, a familiar and serious problem in London from the 19th century to the mid-20th century.
  • This kind of visible air pollution is composed of nitrogen oxides, sulfur oxides, ozone, smoke, and other particulates.
• Hence, option 2 is correct.