GCSE Biology (AQA)

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Pollution

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Ecology Biodiversity and the Effect of Human Interaction on Ecosystems

Pollution

1:15 Biodiversity and Waste
Spec 4.7.3.2
Previous Waste Management Next Land Use
  • Pollution harms the environment and reduces biodiversity.
  • It is a slow process that eventually kills plants and animals.
  • Pollution occurs on land from sources like plastic waste escaping landfills and toxic chemicals being released.
  • Air pollution includes particulates from smoke and carbon from burning fossil fuels or car exhausts.
  • Airborne pollution also involves acidic gases like sulfur dioxide and nitrogen oxide, leading to acidic rain.
  • Water pollution sources include sewage, runoff of fertilizers from farms, and toxic chemicals from factories, affecting rivers, lakes, and seas.

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