engineering recuitment BPSC Assistant Sanitary & Waste Management Officer Mock Test 2022 General Knowledge Ecology and Environment Environment Problems
Which of the following is/are principal agents of Acid rain?
1. Sulfuric Acid
2. Methane
3. Nitric Acid
Select the correct answer using the code given below:
1
1 only
2
2 and 3 only
3
1 and 3 only
4
1, 2 and 3