Why is petroleum also knbwn as ‘black gold’?

Petroleum or crude oil is also called black gold because of not only colour but also due to its commercial values in the market.

• It is the source of running economy. 
• Hydrogen gas obtained from natural gas, is used in the production of fertilisers such as urea.
• All transport system of the world, all chemical and petro-chemical industries depend upon this source.

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Updated on: 17-Mar-2023

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