In the cities of our country, which among the following atmospheric gases are normally considered in calculating the value of Air Quality Index? (IAS Prelims 2016) 1. Carbon dioxide 2. Carbon monoxide 3. Nitrogen dioxide 4. Sulfur dioxide 5. Methane Select the correct answer using the code given below.

In the cities of our country, which among the following atmospheric ga

1.	In the cities of our country, which among the following atmospheric gases are normally considered in calculating the value of Air Quality Index? (IAS Prelims 2016) 1. Carbon dioxide 2. Carbon monoxide 3. Nitrogen dioxide 4. Sulfur dioxide 5. Methane Select the correct answer using the code given below.
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
Answer» C. 1, 4 and 5 only