pyq/2011/prelims/2

Consider the following:

1. Carbon dioxide

2. Oxides of Nitrogen

3. Oxides of Sulphur

Which of the above is/are the emission/ emissions from coal combustion at thermal power plants?

(A) 1 only

(B) 2 and 3 only

(C) 1 and 3 only

(D) 1, 2 and 3