Hi Can someone explain the second marking point? Why is it bubbles of air and not C02?

Vemonus asked Dec 18, 2023

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28 votes

Hi
Can someone explain the second marking point?
Why is it bubbles of air and not C02?

Vemonus asked Dec 18, 2023

2.7k points

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24 votes

In order to float, the bubble hitches a ride in a gas is slightly denser then the air trapped inside of it: carbon dioxide

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