Answer:
(a) The
reasons are as follows
(i) The conventional sources of
energy are depleting Very fast and we are dependent on imports of petroleum and
natural gas to meet our needs.
(ii) Renewable energy sources do not cause environmental pollution with
their use and so, to preserve our environment, we must change over to more use
of such sources.
(iii) Non-conventional sources of energy are very
economical in use compared to conventional sources. Thus, to save expenses, we
should use renewable energy sources.
(b) From the above question I have learnt the importance
of non-conventional sources in our day-to-day life.
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