NATIONAL AND GLOBAL ENERGY SOURCES

• What is a renewable energy resource?

  An energy source that can be replenished
• What are four examples of renewable energy resources?

  • Wind Energy
  • Hydro-Electricity
  • Tidal Energy
  • Solar Energy
• Give an example of a non-renewable energy resource.

  Fossil fuels
• What is a key advantage of gas power stations over coal?

  Gas power stations have short start-up times
• What is another advantage of using gas instead of coal?

  Lower emissions of carbon dioxide
• What are two disadvantages of using renewable energy resources?

  • Supply is uncertain due to external factors
  • Other means are often more efficient
• What are the environmental impacts of burning fossil fuels?

  Carbon dioxide contributes to global warming
• What does sulphur dioxide lead to?

  Acid rain that damages buildings and crops
• What are three advantages of fossil fuels as an energy resource?

  • Reliable and not dependent on external factors
  • Produces large amounts of energy
  • Still relatively abundant and cost-effective
• What are three advantages of nuclear power?

  • Large amounts of energy from small fuel
  • No greenhouse gas emissions
  • Low fuel costs
• What are three disadvantages of nuclear power?

  • Produces harmful nuclear waste
  • Non-renewable energy source
  • Risk of nuclear accidents
• How does hydroelectric power produce energy?

  1. Rainwater collects behind a dam
  2. Water turns a turbine
  3. Turbine turns a generator to produce electricity
• What are some disadvantages of using biofuels?

  • Release CO2 when burned or decayed
  • Land destruction for growth affects habitats
  • Reduces land for food production
• What are the advantages of tidal energy sources?

  • No greenhouse gas emissions
  • Reliable due to regular tides
  • Low operational costs
• What are the disadvantages of hydroelectric power?

  • Dams may cause flooding
  • High installation costs for infrastructure
• What are some advantages of solar panels?

  • Environmentally friendly
  • Renewable resource
  • Usable in remote areas
• What is a social factor that may deter certain types of energy production?

  Visual and sound pollution
• What is a renewable energy resource?

  An energy source that can be replenished
• Name one example of a renewable energy resource.

  Wind Energy
• What are four examples of renewable energy resources?

  Wind, Hydro-Electricity, Tidal, Solar
• Give an example of a non-renewable energy resource.

  Fossil fuels
• What is a key advantage of gas power stations over coal?

  Gas power stations have short start-up times
• What is one environmental benefit of using gas instead of coal?

  Lower emissions of carbon dioxide
• State two disadvantages of using renewable energy resources.

  Supply is uncertain and less efficient
• What is a major environmental impact of burning fossil fuels?

  Contributes to the greenhouse effect
• What does sulfur dioxide from fossil fuels lead to?

  Acid rain that damages buildings
• What is a key advantage of nuclear power?

  Produces large amounts of energy
• List three advantages of fossil fuels.

  Reliable, large energy output, cost-effective
• Why is nuclear power considered environmentally friendly?

  Doesn't release greenhouse gases
• State three disadvantages of nuclear power.

  Nuclear waste, non-renewable, risk of accidents
• How does hydroelectric power generate energy?

  Rainwater turns a turbine to generate electricity
• What is a consequence of growing biofuels?

  Reduces land available for food production
• What happens when plants used for biofuels are burned?

  They release CO2 into the atmosphere
• What are the advantages of tidal energy sources?

  Reliable, cheap, and no greenhouse gases
• What is a disadvantage of hydroelectric power?

  The dam may cause flooding
• What are some advantages of solar panels?

  Environmentally friendly and renewable resource
• What is a social factor that may deter energy production?

  Visual and sound pollution from wind farms
• What are the advantages and disadvantages of renewable energy resources?

  Advantages:

  • Replenishable
  • Environmentally friendly
  • Reduces greenhouse gas emissions

  
  

  Disadvantages:

  • Supply can be uncertain
  • Often less efficient than fossil fuels
• What are the advantages and disadvantages of fossil fuels?

  Advantages:

  • Reliable energy source
  • High energy output
  • Cost-effective

  
  

  Disadvantages:

  • Contributes to greenhouse gas emissions
  • Non-renewable
  • Environmental damage from extraction
• What are the advantages and disadvantages of nuclear power?

  Advantages:

  • High energy output
  • Low greenhouse gas emissions
  • Low fuel costs

  
  

  Disadvantages:

  • Produces harmful nuclear waste
  • Non-renewable
  • Risk of catastrophic accidents