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NEET2018BotanyEnvironmental IssuesActual

Which of the following is a secondary pollutant?

Options

  1. ASO 2
  2. BCO 2
  3. CCO
  4. DO 3

Correct answer

D. O 3

Step-by-step solution

O 3 is a secondary pollutant. It is called a "secondary" pollutant because it is produced when two primary pollutants react in sunlight and stagnant air. These two primary pollutants are nitrogen oxides (NOx) and volatile organic compounds (VOCs)

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