Which is the next major source of energy after coal in India ? -SST 10th

Which is the next major source of energy after coal in India ? -SST 10th
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Petroleum is the next major energy source in India after coal. (i) It provides fuel for heat and lighting. (ii) Lubricants for machinery. (iii) Raw materials for number of manufacturing industries such as synthetic fibres, plastics,detergents, chemicals etc. (iv) It can be easily handled and carried through pipelines.
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