On Wed, 11 Apr 2007 14:31:04 GMT, "Steve Foley"
wrote:

"Don Tabor" wrote in message
.. .

So, please explain how one can tell the difference between coal and
oil and volcanic CO2?

Coal is solid.
Oil is liquid.
Volcanic CO2 is a gas.

(Sorry, that was too easy)


OK

Please explain how one can tell the difference between CO2 from the
burning of coal or oil and Volcanic CO2?



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