Waste management

• why have human consumption of resources and waste production increased?

  • rapid rise in human population
  • increase in standard of living
• state an example of water pollutants

  • sewage
  • fertiliser
  • chemicals
• how does eutrophication occur?

  • fertiliser from farms pollute the water, causing excessive algae growth, depleting the oxygen in the water, causing other plants and animals to die
  • dead plants are decomposed by bacteria and the oxygen level decreases further
• examples of air pollutants

  • smoke
  • acidic gases
• examples of land pollutants

  • landfill waste
  • chemicals