Why petroleum is called black gold explain through an activity displacement reaction
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Answer:
Petroleum is referred to as 'black gold' because when crude oil is extracted from the land it is black in colour.
Explanation:
People call it gold because of its oils and value. It is very difficult to find.
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Answer:
when crude oil extracted from land it is in color of black
Explanation:
people call it gold because for its great importance uses of making substances like detergent,pipes,fertilizers etc people call it liquid hold
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