UPSC Prelims 2019Environment & EcologyQuestion 7 of 18Consider the following: 1. Carbon monoxide 2. Methane 3. Ozone 4. Sulphur dioxide Which of the above are released into the atmosphere due to the burning of crop/biomass residue?A1 and 2 onlyB2, 3 and 4 onlyC1 and 4 onlyD1, 2, 3 and 4See explanation
