energy resourses

• nuclear

  relies on radioactive fuels decaying to produce heat to boil water into steam

  • +produces no CO2
  • -produces radioactive waste
• fossil fuel

  burns coal, oil or gas to produce heat which boils water into steam

  • -non renewable
  • -releases CO2
• wind

  wind turns the turbine which turns on the generator

  • -only generates electricity when windy
  • +produces no green house gases
• solar

  cells convert sunlight into electricity

  • -only works when sunny
  • +portable
• tidal

  tide going in and out turns the turbines

  • +no greenhouse gases
  • -needs strong tides
• hydroelectric

  relies on water falling down a dam to turn the turbines

  • +no greenhouse gases
  • -dams can effect wildlife
• biomass

  hot rocks in earth heat the water producing steam that turns the turbines

  • +no greenhouse gases
  • -not possible everywhere
• geothermal

  burning living things (trees) to produce heat

  • +more can be grown
  • -releases CO2