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1. What is the source of energy of geothermal power stations?
2.
How do tidal power stations affect the environment?
3. Which
power station requires the building of a dam on an upland
river valley?
4. Which
power station stores energy from surplus electricity?
5. Describe the energy transformations when electricity is generated by:
a) Hydroelectric
power stations
b)
Solar cells
c) Wind
turbines
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