Why is there a need to harness non-conventional sources of energy? Give two main reasons.
Answer:
i) As the population is increasing, energy requirements of the world are constantly increasing and in order to fulfil these requirements, we need to consider non-conventional energy sources.
ii) Majority of sources of energy we use are fossil fuel based which are non-renewable and most of them are damaging the climate by causing pollution. So we need to use non-conventional energy sources which do not damage the environment.