Question

why is petroleum called black gold?​

Answer 1

Answer:

hola

Explanation:

Petroleum is also known as Black Gold - because when crude oil is extracted from the land it is black in color. People call it gold because of its oils and value . It is very difficult to find.

thanks for asking ❣️❣️

Answer 2

Answer:

petroleum is known as black coal

because

petroleum is used to buried & coal is also used

so

I Think

I don't know

it is right or wrong