Question

why is petrolem called black gold​

Answer 1

Explanation:

This is because when crude oil is extracted from the land it is black in color. ... Crude oil is jet black before purification but after purification, it turns golden in color; therefore, it's tagged as Gold.

Answer 2

Answer:

pertolium This is because when crude oil is extracted from the land it is black in color. ... 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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