Question

how do you prove that oxygen helps for combution​

Answer 1

Answer:

Here is your answer ⬇️

Explanation:

Put each candle under each glass separately. One should have oxygen inside the glass and the other shouldn't have it. The glass in which the oxygen is present will last longer that means the candle burns until all the oxygen inside the glass is used up. This shows that oxygen helps in burning.

Hope it's helps you