Question
Consider the following
1. Carbon monoxide
2. Methane
3. Ozone
4. Sulphur dioxide
Which of the above are released into atmosphere due to the burning of crop/biomass residue?
(a) 1 and 2 only
(b) 2, 3 and 4 only
(c) 1 and 4 only
(d) 1, 2, 3 and 4
Answer:
D
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Explanation:
Carbon monoxide (CO) is released into the atmosphere due to the incomplete combustion of crop/biomass residue.
Methane (CH4) can be released during the burning of crop/biomass residue if the conditions are conducive to its formation.
Ozone (O3) can be formed as a secondary pollutant in the atmosphere due to the presence of nitrogen oxides (NOx) and volatile organic compounds (VOCs), which can be emitted during the burning of crop/biomass residue.
Sulphur dioxide (SO2) can be released into the atmosphere if the crop/biomass residue contains sulfur compounds.