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  • PowerPoint Slides : renewable energy sources >> Browse by Author >> Browse by Institute
    Downloads: 1502
    Energy Efficiency and Renewable Energy Energy Efficiency and Renewable Energy
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    Hydroelectric power Emission free, cheap, renewable energy source; Disadvantages; Dam covers a vast area ... Hydrologic cycle (animations) h t t p: / / o b s e r v e. a r c. n a s a. g o v / n a s a / e a r t h / h y d r o c y c l e / h y d r o 1. h t m l
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    Sources of Energy Sources of Energy
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    Challenges of Nanotechnology Nanotechnology promises significant advances in electronics, materials, biotechnology, alternative energy sources and other applications. ...

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