1. Carbon dioxide |
2. Carbon monoxide |
3. Nitrogen dioxide |
4. Sulfur dioxide |
5. Methane |
A) 1, 2 and 3 only
B) 2, 3 and 4 only
C) 1, 4 and 5 only
D) 1, 2, 3, 4 and 5
Correct Answer: B
Solution :
(i) The API level is based on the level of 6 atmospheric pollutants, namely sulfur dioxide, nitrogen dioxide, suspended particulates smaller than 10 in aerodynamic diameter (PM10), suspended particulates smaller than 2.5 in aerodynamic diameter (PM2.5), carbon monoxide (CO), and ozone measured at the monitoring stations throughout. So by elimination we are left with option ?b?. Ref: Thehindu newspaper/ April 9, 2015; http: //www. thehindu. com/opinion/blogs/blog-datadelve/article7083985.eceYou need to login to perform this action.
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