As if you didn't already have enough extra credit opportunities from this class...

...here's another one. Ms. Furey sent me an e-mail with the following request:


"Can you have someone who is looking for extra credit find out about whether anything besides gasoline generates black smoke?  It seems to me that Bahr says there were two things about the fire that were suspicious -- smell and smoke.  And he mixes up the two somewhat.  Is gasoline so unique that it generates a smoke different than paint thinners or stripping solvents?  Odd."


The first TWO students who post a comment to this post including specific, ACCURATE information about what causes black smoke and the link where they found the information will receive 5 points extra credit.


Good luck!