Air pollutants - Environment & Biodiversity
Q. Which of the following are primary air pollutants?
1) Ozone
2) Methane
3) Benzene
4) Particulate Matter
5) Oxides of Nitrogen- Published on 31 Aug 15a. Only 1, 3, 4 and 5
b. Only 1, 2, 4 and 5
c. Only 2, 3, 4 and 5
d. All of the above
ANSWER: Only 2, 3, 4 and 5
Primary air pollutants are – Particulate matter (both solid and liquid suspensions), Oxides of carbon, nitrogen and sulphur, hydrocarbons like methane and benzene, etc. Secondary air pollutants are – ozone, sulphur trioxide, etc.
