INDIAN GEOGRAPHY

Detailed explanation-1: -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.

Detailed explanation-2: -Petroleum, also called crude oil, is a fossil fuel. Like coal and natural gas, petroleum was formed from the remains of ancient marine organisms, such as plants, algae, and bacteria.

Detailed explanation-3: -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.

Detailed explanation-4: -Petroleum is called as ‘black gold’.

Detailed explanation-5: -Petroleum is called black gold because it is an important source of energy, and its byproducts are very valuable and expensive.