What is the ultimate source of most energy resources on Earth?
The Sun.
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Describe the energy transfer chain that leads to the formation of fossil fuels.
Sun → Photosynthesis → Fossil fuels.
Sunlight enables plants to photosynthesise. Over millions of years, dead plant matter becomes coal, oil, and natural gas.
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Describe how the Sun's energy leads to the creation of wind energy.
Sun → Atmospheric heating → Wind energy.
The Sun heats the air, causing it to circulate and create winds.
Wind turbines can then convert the kinetic energy of the wind into electricity.
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Describe the energy transfer chain that leads to the chemical energy stored in food.
Sun → Photosynthesis → Food.
Sunlight enables plants to photosynthesise, and the chemical energy produced is stored in the food that we eat.
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Name some examples of renewable and non-renewable energy resources.
Examples of renewable resources include biomass, wind, wave, and solar.
Examples of non-renewable resources include fossil fuels like oil and coal.
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What are the advantages of using renewable energy resources?
Using renewable resources helps sustain energy supplies long-term without depleting reserves.
Renewable resources are more environmentally friendly and produce less pollution.
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