Air is necessary for combustion explain an activity to show it?

Question: Air is necessary for combustion explain an activity to show it? 

An activity to demonstrate the necessity of air for combustion can be lighting a candle inside a jar with a lid. When the lid is closed, the flame eventually extinguishes as it uses up the available oxygen in the jar, which is necessary for combustion to occur. This demonstrates that without air, combustion cannot take place. Upon opening the lid, fresh air rushes in and reignites the flame, confirming that air is indeed necessary for combustion to occur.

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