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| Advantages of Using Solar Energy |
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 It is present everywhere. |
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 It is available in plenty. |
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 It does not cause any environmental pollution like the fossil fuels and nuclear power. |
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 Solar cells last a longer time and have low running costs. |
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| In the first half of the twentieth century solar energy was used in a very limited way. Coal, oil and natural gas were so cheap in the industrial countries of the world. As we are running out of non-renewable source of energy, mankind has started looking for renewable source of energy. |
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| Today, almost all the countries use solar energy and many have plans to use larger amounts in the future. |
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