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Asked by azzawesome to Antoine, Daniel, James, Julie, Saima on 13 Nov 2013.
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James Hickey answered on 13 Nov 2013:
Hey azzawesome. Nice question – a bit different to your usual car related ones…
When you burn green plants, the carbon in them that burns is alive (as opposed to the dead carbon in a block of wood). This means it doesn’t burn very well – something we call ‘incomplete combustion’.
The incomplete combustion then creates lots of smoke because bits of the plant that haven’t burnt properly get included in the smoke as black carbon particles and other nasty gases.
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Saima Rehman answered on 13 Nov 2013:
Hi azzawesome, this is because of three things present in plants,
1. higher water because these are fresh
2. They are very green, the pigment is called “chlorophyll”, which is made up of Lots of Carbon and
3. Lots of Oxygen
Plants burnt out the water present in them (which is difficult) and while these are being burnt, there are some unburnt particles, all these together make lots of smoke.
Comments
azzawesome commented on :
Thanks i know it is.Im more of a car fan but it popped up in my head so i through i might ask it. Thanks for answereing the question
Regards azzawesome