Question

why is petroleum also called black gold ?​

Answer 1

Here is your answer mate

Petroleum is called black gold because when petroleum is extracted from the land it is black in color and is also very useful and valuable product like gold.

hope it helps u...

Answer 2

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. ... Crude oil is jet black before purification but after purification, it turns golden in color; therefore, it's tagged as Gold.

Explanation:

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