Black gold is known as petroleum or black gold....???
Answers
Answered by
9
Because it is very useful and precious so it is compaired with gold and as it is black in color it is called "Black Gold".
Answered by
11
It is called as black gold because it looks like the gold taken frum earth crust (black in colour) and secondly, it has much prominence just as like gold has its own importance in economy.
Similar questions