Q. The source of energy which are formed in earth over millions of years and which get deleted due to their continuous use but do not replenished are known as
Solution:
? Fossil fuels like petroleum coal and natural gas are Non-renewable sources of energy.
? The source which are perennial and give energy continuously and which do not deplete with use are called Renewable source of energy.
? Biomass, biogas, hydrogen, alcohol etc are Renewable Energy.
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