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प्रश्न
Make a list of conventional and non-conventional sources of energy. Give a brief description of harnessing one nonconventional source of energy.
उत्तर
- The conventional sources of energy are : petroleum, coal, fossil fuel, natural gas, etc.
- The non-conventional sources of energy are : geothermal energy, wind energy, hydroelectric energy, ocean energy, solar energy, etc.
- Solar energy : This is the non-conventional source of energy in which solar energy is harnessed in many ways by using devices like solar cell, solar cooker, etc. In solar cooker, it is used to trap the heat energy and cook the food.
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