ocr: The Sun as an energy source The amount of energy that the Earth gets from the Sun is huge. Sunshine falling on the roads in the United States 111 one year contains (wice as much energy as all the coal and oil usedin a year worldwide. The Sun 1s an important non- polluting and renewable energy source. The Sun's energy can be converted into electricity inside photovoltaic (solar) cells. Solar cells are found in solar-powered calculators, radio beacons and telephone links 111 remote areas, space satellites, and navigation buoys on the oceans.
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