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Non renewable resources


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Non renewable resources

  1. 1. NON-RENEWABLE RESOURCES<br />8SCIENCE Mon.,Dec. 6<br />
  2. 2. Non – renewable resources<br />Approximate world usage of fossil fuels<br />A natural resource that is available only in limited amounts<br />Cannot be replaced quickly by natural processes<br />Examples: topsoil, fossil fuels for energy<br />
  3. 3. Review of non-renewable resources: Mining<br />What is mining?<br />Mining is a non-renewable resource<br />Minerals like diamonds, aluminum, copper are taken out of the Earth <br />How do mining projects affect the environment and ecosystems?<br />Video clip: mining emeralds in Colombia<br />Strip mining for coal<br />
  4. 4. Fossil Fuels<br />Most common non-renewable resource and is used for energy<br />Found in 3 forms:<br />Coal<br />Oil (gasoline, fuel for planes, trucks, heating)<br />Natural gas<br />Formed when organisms die and are buried in layers of rock/soil<br />Under intense heat and pressure<br />
  5. 5. Why do you think fossil fuels are non-renewable?<br />
  6. 6. What are they worth ($$$)?<br />We use fossil fuels to ‘power’ most objects in our lives:<br />Cars, factories, electricity for houses<br />Finding new sources of fossil fuels can be very lucrative<br />Can make a large profit/ a lot of money<br />However, there are only a limited amount of these fossil fuel reserves on the planet<br />
  7. 7. Fossil fuels: Environmental Impact<br />Burning fossil fuels releases chemicals and substances that contaminate the air and water<br />A common product made from fossil fuels (oils) is plastic<br />While we continue to use fossil fuels, how can we try and reduce our environmental impact?<br /><ul><li>3Rs!: Reduce, reuse and recycle</li></li></ul><li>Biodegradable<br />When we throw out plastics and other items for garbage, some of those items may be biodegradable<br />Biodegradable: <br />can be broken down by other living things, usually bacteria<br />Examples of biodegradable items/products:<br />Food waste like apple cores, banana peels, napkins, paper, some plastic bags <br />