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Renewable Energy Resources

1

Wind

Wind turbines are now a common site in many parts of the world. Although they do not emit any carbon dioxide or greenhouse gases they only work when the wind is blowing.

2

Solar

Solar farms, with banks of photovoltaic cells, generate electricity from sunlight. 

3

Geothermal

In certain parts of the world water can be pumped undergorund where it is heated up by the hot rocks there, turning it into steam which then turns turbines.

4

Tidal, Wave and Hydroelectric

These are all ways to capture the energy stored in water that is moving or higher than its surroundings.

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