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Chemistry · May / June 2025 · Paper 11 · Question 30

5070Air quality and climate

Which row states an adverse effect for the named pollutant?

  1. Acarbon dioxide — increases plant growth
  2. Bmethane — causes cancer
  3. Coxides of nitrogen — photochemical smog
  4. Dparticulates — acid rain

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Correct answer: C. oxides of nitrogen — photochemical smog

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