Chapter 20

Human Influences on Ecosystems

How pollution and deforestation harm ecosystems, and how conservation helps — with an interactive exercise.

Human Influences on Ecosystems: human activity can damage the environment.

Pollution (of air, water and land), deforestation and overuse of resources harm ecosystems. Conservation and sustainable use help protect biodiversity for the future.

Remember

  • Pollution and deforestation harm ecosystems.
  • Conservation protects biodiversity.

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