Wednesday, April 28, 2010

How is crude oil formed in the earth before being refined?

Below are links to sites that describe in detail the formation of crude oil. I hope this will help!


http://www.gi.alaska.edu/ScienceForum/AS鈥?/a>





http://www.bbc.co.uk/schools/gcsebitesiz鈥?/a>





http://triplediamondenergycorporation.bl鈥?/a>
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