Question

_________is also called

black gold.

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Answer 1

Answer:

Crude oil

Hope it helps you

Answer 2

Answer:

petroleum

Explanation:

Petroleum is referred to as Black Gold. This name itself is an indication of its importance to humans. It is called black gold because

It is black in colour when crude oil is extracted from the soil.

Because of its oil and worth, people call it gold.

It’s absolutely hard to find.