Yesterday I saw the local politician inaugurating a sporting event and he let go many coloured balloons to sky to mark the inauguration .
I wondered these balloons how far will go up into the sky ?
Generally not very high .
What happens is as the balloons go up into the sky , the surrounding atmospheric pressure decreases .
The pressure of the outside air goes on decreasing to such a level that the balloons start expanding with their own internal pressure .
This will result in popping or bursting of balloons .
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