Biology 0610 · IGCSE · Pollution

Pollution — practice question

The graphs illustrate the changes that happen in a lake as eutrophication takes place. What are the labels for W, X and Y?

  • AW: decomposers, X: producers, Y: oxygen
  • BW: decomposers, X: producers, Y: sulfur dioxide
  • CW: producers, X: decomposers, Y: oxygen
  • DW: producers, X: decomposers, Y: sulfur dioxide

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