Question

Which conventional source of energy is known as Black Gold?
it's urgent ​

Answer 1

Answer:

Petroleum is known as Black gold.

Answer 2

Answer:

Its Crude oil

Black gold – that's what people sometimes call crude oil. The term, actually, was first used to describe coal. Either way, it's an apt metaphor. Oil, coal and natural gas are fossil fuels that represent the most elemental source of human wealth: energy from the sun

Explanation:

Hope helps