Chemistry 0620 · IGCSE · Air quality and climate

Air quality and climate — practice question

Carbon dioxide and methane both play a part in climate change. Which process gives rise to both gases?

  • Acomplete combustion of natural gas
  • Bfarming cattle
  • Cheating calcium carbonate
  • Drespiration

Worked solution & mark scheme

This 1-mark question has a full step-by-step worked solution and mark scheme.

  • Full mark scheme, point by point
  • Step-by-step worked solution
  • Write your answer & get it marked instantly by AI