Multiple choice

Which of the following gases is/are responsible for the formation of brown haze dome above or plume downwind of cities?

  1. Sulphur dioxide
  2. Nitrogen oxide
  3. Carbon dioxide

  1. 1 and 2 only

  2. 2 and 3 only

  3. 1 only

  4. 2 only
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Nitrogen oxides (NOX), especially nitrogen dioxide, are emitted from high temperature combustion and can be seen as the brown haze dome above or plume downwind of cities.

Keep practicing — related questions