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प्रश्न
What are non-conventional sources of energy?
उत्तर
Non-conventional sources of energy are those energies which have been recently put to use for commercial purpose. They are generally renewable and non-polluting sources of energy. They have the initial high cost of installation whereas their long time running cost is low and also they are environment friendly. Eg. Solar energy, wind energy, tidal and wave energy, geothermal energy, and bioenergy.
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