Question

Is it interesting to see the balloons flying up in the air?
Which is the gas filled in these balloons?​

Answer 1

Answer:

Yes, it is interesting to see balloons fly up in the air. Hydrogen is the gas filled in these balloons.

Explanation:

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Answer 2

Answer:

yes, it is interesting to see balloons fly on in the air . Hydrogen is the gas filled in these balloons.