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Chemistry · Oct / Nov 2018 · Paper 11 · Question 32

5070Air quality and climate

Pollutant gases are released by the bacterial decay of vegetable matter. The bacterial decay of vegetable matter is the main source of which gas?

  1. Acarbon monoxide
  2. Bmethane
  3. Cnitrogen dioxide
  4. Dsulfur dioxide

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Correct answer: B. methane

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