renewable sources of energy

• What do fossil fuels provide in terms of energy in the UK?

  A large amount of reliable energy
• What is a major environmental impact of burning fossil fuels?

  Releases a large amount of carbon dioxide
• What is the definition of renewable energy?

  Can be replenished as it's used
• Name three commonly used renewable energy resources.

  Wind power, solar power, hydroelectric power
• What are the two main advantages of renewable energy resources?

  They never run out and do not add CO2
• Why are wind and solar power considered unreliable?

  Not windy or cloudy days affect generation
• What is a disadvantage of hydroelectric power?

  Destroys habitats when dams are built
• Why is tidal power considered reliable?

  Tides come in and out twice a day
• What is the current status of tidal power generation in the UK?

  No electricity is generated from tidal power
• What is a potential concern regarding tidal power proposals?

  They may harm local wildlife
• What is the current state of wave power in the UK?

  It is small-scale and experimental
• How does geothermal energy generate electricity?

  Uses heat from the earth
• What is a challenge with renewable energy generation in the UK?

  Most energy use is for transport
• What are biofuels produced from?

  Plant materials
• What is the environmental impact of burning biofuels?

  Releases carbon dioxide
• Why are biofuels considered carbon neutral?

  Plants take in CO2 while growing
• What is a potential problem with using land for biofuel crops?

  It could raise food prices
• What are the advantages and disadvantages of renewable energy sources?

  Advantages:

  • Never run out
  • Do not add CO2 to the atmosphere

  
  

  Disadvantages:

  • Wind and solar power are unreliable
  • Hydro power can destroy habitats
  • Biofuels can raise food prices
• What are the main types of renewable energy resources discussed?

  • Wind power
  • Solar power
  • Hydroelectric power
  • Tidal power
  • Biofuels
  • Geothermal energy
  • Wave power