Energy resources

• What was the primary source of energy for humans throughout most of history?

  Wood
• How has the primary source of energy changed over the past 200 years?

  Shifted from wood to fossil fuels
• What are fossil fuels?

  Coal, oil, and natural gas
• What has increased in use over the past 50 years?

  Renewable energy resources
• What are some types of renewable energy resources?

  • Solar
  • Wind
  • Hydroelectric
  • Geothermal
  • Biofuels
  • Tidal
• What are the main uses of energy in the UK?

  Transport and domestic uses
• What fuels are primarily used for transport in the UK?

  Petrol and diesel
• What powered trains traditionally in the UK?

  Coal
• How has train power changed over time?

  From coal to electricity
• What is the main source of energy for heating in UK households?

  Natural gas
• How is hot water used for heating in homes?

  Pumped into radiators
• What is another non-renewable source of heat besides natural gas?

  Coal
• What is a renewable source of heating mentioned in the text?

  Solar water heaters
• How do solar water heaters work?

  They use the sun's energy to heat water
• What determines if electricity is renewable or non-renewable?

  How it's made
• What are the main sources of electricity in the UK?

  • Almost 60% from fossil fuels
  • Nearly 80% from non-renewable resources
• What percentage of electricity in the UK comes from fossil fuels?

  Almost 60%
• What percentage of electricity in the UK comes from non-renewable resources?

  Nearly 80%
• What is the implication of the majority of electricity being from non-renewable resources?

  It indicates reliance on fossil fuels