Biofuels

Cards (6)

  • Biofuels
    Fuels made from plant materials or animal waste
  • How is biofuel different to fossil fuels
    Made from living or recently living organisms
    In contrast, fossil fuels are made from organisms which died millions of years ago
  • 3 advantages of biofuels
    Renewable
    Easy to transport
    Can be used in vehicles
  • 2 disadvantages of biofuels
    They require a large area of land to grow
    Require a lot of energy to harvest, process, and transport
  • Why are biofuels carbon neutral (in theory)
    Absorb the same amount of carbon dioxide while growing as they release when they’re burned
  • Why are biofuels not really carbon neutral in practice
    Lots of land is required to grow biofuels so trees must be broken down meaning less CO2 is being absorbed and more is being released if the trees are burned