Question

What are the conventional sources of energy ?

Answer 1

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These sources of energy are also called non renewable energy. These sources of energy are in limited quantity except hydro-electric power.

Additional information

These are further classified as commercial energy and non-commercial energy:

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Answer 2

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These are the types of energy this can only be used once can't be used again and again this type of answer is called non - renewable energy and the energy which can be reused are know as renewable energy.