Geography, asked by jitendrasinghsolanki, 6 months ago

3. Why is petroleum called 'black gold'?

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Answered by msnagamani9

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

.............. hope it helps..............

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