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प्रश्न
What is meant by a non-renewable source of energy? Give two examples of non-renewable source of energy.
उत्तर
The sources of energy that have accumulated in nature over a very long time and cannot be quickly replaced when exhausted are called non-renewable sources of energy.
The two examples of non-renewable sources of energy are:
a) Fossil fuels (such as coal, petroleum and natural gas)
b) Nuclear fuels (such as uranium)
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