Q698
Which one of the following is not a primary pollutant?
A.
Particulate matter
B.
Carbon monoxide
C.
Sulpuric acid
AnswerD.
Nitrogen oxides
Answer: Option C
Solution
Answer: Option C
Solution:
Ozone is not a primary pollutant since it is formed by the photo-chemical reaction of oxygen with the UV rays and not directly discharged into the atmosphere by a source. Similarly, sulphuric acid is also not a primary pollutant.