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Advantages of conventional energy-
- They are readily available and cheap in cost (energies like coal, oil and gas).
- They are much easier to produce and to use.
Disadvantages  of conventional energy-
- They are fastly depleting and when the fossil fuels burn they emit carbon dioxide and other greenhouse gases and make the environment even more polluted.
- Also now-a-days the prices of fossil fuels are rising a lot.
- They cause a lot of pollution by leaving behind harmful by-products.

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