Answers

2015-06-09T19:46:43+08:00
When you pull down the balloon downwards, the air pressure inside decreases and the are inside the container increases. I hope this helps!
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meron pa po akong tanong :0
:)
Ano yun?
how does the movement of the diaphragm cause the air to go in ang out of the lumgs?
it pushes the air...