Sources of Energy
The sun is the chief source · Two kinds of sources · Examples from Nepal
The sun's heat dries wet clothes
Electrical energy runs an electric scooter
Gas, firewood and dung cakes cook food
A solar panel turns sunshine into electricity
Direct use: the water cycle, plants making food, drying grain and firewood
Indirect: petroleum, natural gas and hydroelectricity are its transformed states
Without the sun, life is not possible
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