Question

Q9.Why is petroleum called a black gold?How is it formed?Name the chief producers of petroleum in the world.​

Answer 1

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Petroleum is referred to as Black Gold. When the petroleum is drilled from the ground in the liquid form, it is referred to as crude oil. This name black gold itself is an indication that it is very vital to humans. Because of its oil and worth, people refer to it gold.

Answer 2

Answer:

Petroleum is referred to as 'black gold' because when crude oil is extracted from the land it is black in colour and it's vital role in human use