pyq/2022/prelims/100

Consider the following;

1. Carbon monoxide

2. Nitrogen oxide

3. Ozone

4. Sulphur dioxide

Excess of which of the above in the environment is/are the cause(s) of acid rain?

(A) 1,2 and 3

(B) 2 and 4 only

(C) 4 only

(D) 1,3 and 4