Petroleum as an energy resource and raw material:
1. As an energy resource, it used as a fuel for heating and lighting.
2. In the manufacturing industries, it also acts as a lubricant for machinery.
3. Petroleum refineries are ‘nodal industries’ for synthetic textile, fertilizer and numerous chemical industries.
Explanation: Petroleum is an essential raw material for a number of industries. But it’s an important energy resource too.
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