Question

3) गुब्बारा नीचे कैसे उतर आता है?​

Answer 1

Due to gravity

Explanation:

And its light weight and mass

Answer 2

Answer:

May be the answer of this question is. Because there is less gas of nitrogen and due to gravity, and the other hand if there is more gas of nitrogen is present in balloon the balloon will goes up in the sky.

Hope it's helpful to you.

According to my point of view this is the correct answer.