Question

you have seen helium gas balloons rising high,whereas other balloons do not .Find the reason​

Answer 1

Answer:

https://clk.ink/nMNMV4G

Answer 2

Answer:

Helium balloons float because helium is less dense than air. Helium balloons deflate because helium atoms are small enough to slip between spaces in the balloon material. Helium balloons are Mylar and not rubber because there is less space between the molecules in Mylar, so the balloon stays inflated longer.