Biology 5090 · O Level · Nutrient cycles

Nutrient cycles — practice question

The diagram illustrates part of the carbon cycle. What are X, Y and Z?

  • AX combustion, Y respiration, Z ingestion
  • BX combustion, Y ingestion, Z respiration
  • CX photosynthesis, Y respiration, Z combustion
  • DX photosynthesis, Y combustion, Z respiration

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