Question

Petroleum is also known as
(a)coke
(b) black gold
(c) tar
(d) none of these

Answer 1

Answer:

black gold

Explanation:

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Answer 2

Answer:

black gold

Explanation:

Petroleum is referred to as 'black gold' because when crude oil is extracted from the land it is black in colour. People call it gold because of its oils and value. It is very difficult to find.