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प्रश्न
State any four characteristics of a good source of energy.
उत्तर
Four characteristics of a good source of energy are as follows.
a) It should have a high calorific value.
b) It should be cheap and easily available.
c) It should be safe to handle and use.
d) It should be environment friendly, i.e, it should not cause pollution.
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संबंधित प्रश्न
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