ESE 2021Q2
Q: According to UNEP, which of the following is/are the major component/s of air pollution? 1. SO2 2. O3 3. CO 4. NO2 Select the correct answer using the code given below:
(a)2 and 3 only
(b)2 only
(c)2, 3 and 4 only
(d)1, 2, 3 and 4
Correct Answer: (c)
Detailed explanation coming soon.