Q. Consider 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?

[A] 1 and 2 only

[B] 2, 3 and 4 only

[C] 1 and 4 only

[D] 1, 2, 3 and 4

Answer: D
Notes:
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