Answer:
(i)
The growing consumption of energy has resulted in the country becoming
increasingly dependent on fossil fuels such as coal, oil and gas.
(ii) Rising prices of oil and gas and their potential shortages have
raised uncertainties about the security of energy supply in future, which has serious
repercussions on the growth of the national economy.
(iii) Increasing use of fossil fuels also causes serious
environmental problems.
Hence, there is a primary need to use renewable energy
sources like solar, wind, tidal, biomas and energy from waste material. They
are called non- conventional sources of energy.
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