Join Examsbook
1103 0

Q: Which of the following is a secondary air pollutant?

  • 1
    Acid rain
  • 2
    SO2
  • 3
    CO2
  • 4
    Dust particles
  • Show AnswerHide Answer
  • Workspace

Answer : 1. "Acid rain"
Explanation :

Answer: A) Acid rain Explanation: Secondary pollutants include ozone, which is formed when hydrocarbons (HC) and nitrogen oxides (NOx) combine in the presence of sunlight.   Whereas Primary pollutant are those pollutants that are directly emitted from their sources, like CO2, CO, SO2 as these gases are directly emitted form burning of fossil fuels.   Acid rain, which is formed when sulfur dioxide or nitrogen oxides react with water, sulfuric acid etc.   Hence, Acidrain is a secondary air pollutant.

Are you sure

  Report Error

Please Enter Message
Error Reported Successfully