UPSC Prelims 2022Environment & EcologyQuestion 3 of 18Consider 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?A1,2 and 3B2 and 4 onlyC4 onlyD1,3 and 4See explanation
