Civil Engineering - UPSC Civil Service Exam Questions - Discussion
Discussion Forum : UPSC Civil Service Exam Questions - Section 25 (Q.No. 27)
27.
Which of the following air pollutants is/are responsible for photochemical smog ?
1. Oxides of nitrogen
2. Ozone
3. Unburnt hydrocarbons
4. Carbon monoxide
Select the correct answer from the codes given below :
1. Oxides of nitrogen
2. Ozone
3. Unburnt hydrocarbons
4. Carbon monoxide
Select the correct answer from the codes given below :
Discussion:
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