solar energy and wind energy presentation
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solar energy and wind energy both are renewable and inexhaustable sources of energy . both the energy sources do not create environmental pollution . wind energy is obtained by setting the wind mills around the area having minimum speed of air 15 km/hr. solar energy is the energy obtained by sun . sun's energy is tapped in solar panal and stored for future use . solar energy is also helpful for making food by solar firnances and solar cookers ....
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