Chemistry 0620 · IGCSE · Air quality and climate

Air quality and climate — practice question

A section of the carbon cycle is shown. What are the processes P, Q and R?

  • AP: decomposition; Q: respiration; R: photosynthesis
  • BP: respiration; Q: photosynthesis; R: decomposition
  • CP: respiration; Q: decomposition; R: photosynthesis
  • DP: photosynthesis; Q: respiration; R: decomposition

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