why is Mineral oil called black gold
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Petroleum is also known as Black Gold - because when crude oil is extracted from the land it is black in color. People call it gold because of its oils and value . It is very difficult to find.
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Answered by
10
Answer:
Mineral oil is called black gold because when crude oil is extracted from the land it is black in colour. people call it gold because of its oil and value. it is very difficult to find.
May it will help you....
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