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I taught chemistry for 25 years. I now provide tuition online. I just like nicely produced, imaginative resources.

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I taught chemistry for 25 years. I now provide tuition online. I just like nicely produced, imaginative resources.
Exhaust gases
simondobbssimondobbs

Exhaust gases

(0)
I made a simple information sheet about combustion of fuels and pollution. Because I wanted to.