4. What do you know about 'liquid gold?
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Petroleum is known as Liquid Gold because of its high value in the market. It also serves directly or indirectly as a source for many organic products which are useful to humans. Like gold, it is expensive and difficult to find.
Answered by
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Answer:
Petroleum is known as Liquid Gold because of its high value in the market. It also serves directly or indirectly as a source for many organic products which are useful to humans. Like gold, it is expensive and difficult to find.
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