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On what basis would you classify energy sources as: (a) renewable and non-renewable? (b) exhaustible and inexhaustible?

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On what basis would you classify energy sources as:

(a) renewable and non-renewable?

(b) exhaustible and inexhaustible?

Are the options given in (a) and (b) the same?

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(a) Renewable sources of energy are continually replenished through a number of natural processes and will never run out. These are available free of cost and are ecofriendly. Whereas non-renewable sources of energy are those which once used up cannot be replaced over millions of years. Moreover burning of fossil fuels limit their source.

(b) Coal, petroleum, natural gas, etc. are exhaustible sources of energy as their quantity is limited and they get exhausted on their continuous usage for which eventually take long period to get renewed up.

Solar energy, wind energy, etc. are inexhaustible sources of energy. These sources of energy can be used endlessly and never get exhausted.

The options given in (a) and (b) are the same in the way of availability, but some are not available always.

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