In class we found 'oil'. This involved making a master play map and finding profit. Oil is 10 million years old, is sold in barrels and needs a source, reservoir and trap. Did you know that oil costs $126.62 per barrel? And is in a viscous liquid stage? I think that oil should be used a lot less. It is a non-renewable resource, and is a factor in global warming. It is ruining our earth.
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