Which of the following is/are secondary pollutant(s)?

  1. Ozone
  2. Sulphur dioxide
  3. Nitrogen oxides
  4. Carbon Monoxide

Select the correct option from codes given below:

Answer: [A] 1 Only

Sulphur dioxide, nitrogen oxides and carbon monoxide are primary pollutants

This question is a part of GKToday's Integrated IAS General Studies Module