Question

how will you prove that air supports burning​

Answer 1

Answer:

Take a candle and try to burn it in air. Take another candle and try to burn it while keeping it submerged in water. You will observe that, while the candle burns in air; it does not burn in water.

Answer 2

Answer:

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You will find that the candle blows out after burning for some time, and the water level inside the inverted glass rises to some extent. The component oxygen of air inside the glass is used up in burning. Therefore, water occupies that space. This shows that air supports burning.

Explanation:

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