Question

Give reason:

Petroleum is referred to as
'Black gold'.​

Answer 1

Answer:

This is because when crude oil is extracted from the land it is black in color. This resource is compared to gold due to its valuable properties and worth too. Its many components have a lot of commercial value. Such a substance is rare on earth. Even its extraction is expensive

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Answer 2

Answer:

Petroleum is referred to as Black Gold. ... When the petroleum is drilled from the ground in the liquid form, it is referred to as crude oil. This name black gold itself is an indication that it is very vital to humans. Because of its oil and worth, people refer to it gold.

Explanation:

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