1.

Compare and contrast fossil fuels and the Sun as direct sources of energy .

Answer»

SOLUTION :(i) The reserves of fossil are limited, i.e., exhaustiblewhereas solar energy is available in abundance (and that too without COST) i.e., inexhaustible.
(ii) Fossils fuels cause pollution on BURNING whereas solar energy in pollution - free.
(iii) Fossil fuels can provide energy at any required time whereas solar energy becomes unavailable when the sky is covered with CLOUDS.


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