Waste Management

• What is biodiversity?

  The variety of different species of organisms
• Why is maintaining rich biodiversity important?

  It makes ecosystems more stable
• How has the human population changed in the last 100 years?

  It has increased massively
• What has increased alongside the human population?

  The average standard of living
• How does increased resource use relate to waste production?

  More resources lead to more waste production
• What types of pollution will be discussed in the video?

  Water, air, and land pollution
• What does sewage contain?

  Urine and feces
• How is sewage treated in the UK?

  It is treated before being released
• What happens when untreated sewage is released into waterways?

  It can lead to pollution and biodiversity loss
• What effect do fertilizers have on rivers and streams?

  They cause dissolved oxygen levels to fall
• What can toxic chemicals from factories do to rivers?

  They can kill animals in the river
• How does air pollution from burning coal affect biodiversity?

  It can kill plants and animals
• What is a consequence of millions of tons of waste dumped in landfills?

  It destroys habitats for plants and animals
• What can happen to toxic chemicals in landfills?

  They can leach out and pollute soil
• What is the overall impact of human waste on biodiversity?

  It reduces biodiversity in ecosystems
• What are the main types of pollution caused by human waste?

  • Water pollution
  • Air pollution
  • Land pollution
• What are the effects of water pollution on aquatic ecosystems?

  • Reduced dissolved oxygen levels
  • Death of aquatic organisms
  • Loss of biodiversity
• What are the effects of air pollution on biodiversity?

  • Kills plants and animals
  • Reduces species diversity
• What are the effects of land pollution on biodiversity?

  • Destroys habitats
  • Pollutes soil with toxic chemicals
  • Kills living organisms
• How should we handle waste materials to protect biodiversity?

  • Carefully handle waste
  • Dispose of waste without harming the environment