Which one of the following is not correctly matched? (Green House Gas — Source)
(A) Carbon dioxide — Thermal Power Stations
(B) Chlorofluorocarbon — Automobiles
(C) Nitrous Oxide — Waterlogged Paddy fields
(D) Sulphur dioxide — Brick Kilns

Correct answer: (b) B

Explanation

Chlorofluorocarbons (CFCs) are released mainly from refrigerants and aerosols, not from automobiles, so (B) is wrongly matched.

Correct pairs: Carbon dioxide from thermal power stations, Nitrous oxide from waterlogged paddy fields, and Sulphur dioxide from brick kilns.

Automobiles chiefly emit CO, NOx and hydrocarbons, not CFCs.