pyq/2019/prelims/35

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