Science 30 Diploma Examination January 2001

Use the following information to answer the next question.As a safety feature in gas plants that process natural gas containing H 2 S (g) , thegas undergoes complete combustion in a flare stack rather than being releasedinto the atmosphere.Complete Combustion of H 2 S (g)2 H 2 S (g) + 3 O 2(g) → 2 SO 2(g) + 2 H 2 O (g)17. The products of this combustion significantly contribute toA. acid depositionB. global warmingC. ozone depletionD. photochemical smog9