Unit 3: Fossil Fuels - Coal

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  • Coal
    • Formation
      • Dead plants become pure carbon as other materials squeezed out
    • Extraction
      • Open cast mining
        • Mechanised
        • Used for coal near the surface
      • Deep mining
        • Labour intensive
        • Removes small quantities (expensive)
      • Deep coal can be burned underground to produce fuel gases
    • Uses
      • Electricity generation
      • Iron and steel industry
    • Characteristics
      • High energy density
      • Finite resource
      • Some reserves are inaccessible
      • Causes habitat loss, noise and dust pollution, pollution and climate change
      • British coal mines were closed down due to cheap natural gas
        • Mines are now flooded/unsafe

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