Land + Water + Air Pollution

• Examples of land pollution:

  • Building houses
  • Mining and quarrying areas
  • Growth of crops
  • Landfill areas
• Examples of water pollution :

  • Toxic chemicals / waste in river
  • Herbicides
  • Pesticides
  • Sewage
• Examples of air pollution :

  • Burning fossil fuels
  • Transportation
  • Wildfires
• Air pollution causes respiratory problems such as asthma and lung cancer.
• Water pollution is caused by sewage, toxic chemicals from factories and oil spills, killing sea life and reducing biodiversity
• The main cause of air pollution is burning fossil fuels which releases carbon dioxide into the atmosphere.
• Air pollution leads to acid rain which kills plants and animals, reduces visibility and causes respiratory problems.
• Bio indicators = Organisms that live in very specific conditions in an environment, indicating if it is clan or dirty
• Why humans lived longer:

  • No natural predator
  • Better living conditions
  • Less infectious diseases (medicine and access to healthcare)