Emissions from burning crop/biomass residue — UPSC Prelims PYQ 2019
Consider the following:
- Carbon monoxide
- Methane
- Ozone
- Sulphur dioxide
Which of the above are released into the atmosphere due to the burning of crop/biomass residue?
- 1 and 2 only
- 2, 3 and 4 only
- 1 and 4 only
- 1, 2, 3 and 4
Explanation
Option (d) is correct
- Burning of crop/biomass residues emit gases like sulphur dioxide (SO2), oxides of nitrogen (NOx), carbon dioxide (CO2), carbon monoxide (CO), black carbon (BC), organic carbon (OC), methane (CH4), volatile organic compounds (VOC), non-methane hydrocarbons (NMHCs), ozone (O3), and aerosols etc.
Answer: (d) 1, 2, 3 and 4; Difficulty Level: Easy
