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The top documents tagged [shale videoshould]
FOSSIL FUELS IV
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FOSSIL FUELS IV Tar Sand and Oil Shale. Tar (oil) Sand Tar sands are simply sands that contains a hydro carbon product called butumen. Tar sands are simply
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FOSSIL FUELS IV Tar Sand and Oil Shale. Tar Sands (Oil Sands) Tar sands are simply sands that contains a hydro carbon product called butumen. Tar sands
229 views