how will you show that air is essential for burning fuels
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It consists of about 78% nitrogen, 21% oxygen, and about 1% of argon, carbon dioxide, and other gases — as well as varying amounts of water vapour. 3.How will you show that air is essential for burning fuels? ... While animals use that O2 for respiration and give out CO2 which is useful to the plants.
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by burning candle in vaccum
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