Wave power
Waves are caused by the wind blowing across the sea and whipping it up. We can harness the energy in waves by using a turbine. Waves are a renewable energy source.
Wind power
Wind is caused by the Sun heating up different parts of our atmosphere. We can us a wind turbine to harness the energy in the wind. The wind is a renewable energy source.
Wood
Wood is a renewable energy source because we can grow more trees. Wood is an example of biomass. Wood can be burned to warm and light homes, cook food or even generate electricity in a biomass power station.
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