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Burning candles consume oxygen. Flame causes combustion of waste in the form of carbon dioxide. Carbon dioxide is heavier than air but convection currents that cause carbon dioxide accumulates at the top of the jar. Therefore, the candle goes out from highest to lowest.
Burning candles consume oxygen. Flame causes combustion of waste in the form of carbon dioxide. Carbon dioxide is heavier than air but convection currents that cause carbon dioxide accumulates at the top of the jar. Therefore, the candle goes out from highest to lowest.
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