Question

it is also known as black gold​

Answer 1

Answer:

PETROLEUM IS ALSO KNOWN AS THE BLACK GOLD

Explanation:

PETROLEUM IS KNOWN AS BLACK GOLD BECAUSE IT HAS A GOOD AND HIGH DEMAND IN THE WORLD .

Answer 2

Answer:

Petroleum

Explanation:

Petroleum is highly valuable. This is sent to refineries which process the crude oil and produce diesel,petrol,kerosene,wax,plastics and lubricants. These are used in our daily lives and that's why they are highly valuable. That's why it is called black gold