Question

which is called black gold​

Answer 1

Answer:

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Explanation:

which is called black gold

• Black gold is a term applied to oil or petroleum, which is black when it comes out of the ground and is worth a great deal of money. Prior to the mid-19 th century, oil from animal tallow (fat) and whale blubber was used as a lubricant and fuel.

Answer 2

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which is called black gold.

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Black gold is an informal term for oil or petroleum — black because of its appearance when it comes out of the ground, and gold because it made everyone involved in the oil industry rich.