| Which of the following are required for the formation of Ground-level ozone (GLO)? |
| 1. Carbon dioxide |
| 2. Volatile Organic Compounds |
| 3. Sunlight |
| Select the correct answer using the codes given below. |
A) 1 and 2 only
B) 1 and 3 only
C) 2 and 3 only
D) 1, 2 and 3
Correct Answer: C
Solution :
[c] Ground-level ozone is a colourless and highly irritating gas that forms just above the earth's surface. Ground level or "bad" ozone is created by chemical reactions between oxides of nitrogen\[(N{{O}_{X}})\] and volatile organic compounds (VOC) in the presence of sunlight. Emissions from industrial facilities and electric utilities, motor vehicle exhaust, gasoline vapours, and chemical solvents are some of the major sources of \[N{{O}_{X}}\] and VOC.
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