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Human influences on the environment

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Question 28

Agricultural activities can sometimes result in the pollution of nearby rivers by animal slurry (a mixture of animal waste and water).

a.

Identify the primary biological substance present in animal slurry that constitutes organic pollution.

[1]
b.

Explain the biological consequences of this organic waste entering a river ecosystem.

[3]

Human influences on the environment Questions

  1. IGCSE
  2. /Biology
  3. /Human influences on the environment