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Another gas was used for many years to float transportation balloons.


WHICH GAS IS IT:


1) Carbon dioxide

2) Oxygen

3) Hydrogen


Why is this gas not used in balloons today?

Verified Answer :

Another gas that was used to fill balloons was hydrogen. The reason why hydrogen is not used today is because it use to cause many fires when it was used to fill balloons up.

Hope I helped you! :)

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