Question

which one of the following is called as Black gold
1 natural gas
2 coal
3 petroleum
4 turbine​

Answer 1

Answer:

The answer is 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 color when crude oil is extracted from the soil.
• Because of its oil and worth, people call it gold.
• It’s absolutely hard to find.