Petroleum is happy Pedro carbon compounds, which occur naturally
petroleum can be divided into 2 types based on the status of the nature are crude oil, the natural petroleum
used as a fuel in the transport sector the electricity generation
It Lubricates secret machines, really appreciate the conqueror to fly is important variables in the development chamber transport system
the rhetoric of technology and the trade between Prof.
study in this branch has the duty to find the oil and energy, all the inhabitants of the country use
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