Answers

  • Lav
  • Ambitious
2014-06-12T16:05:02+08:00
Think of a half cut bottle with a balloon at the end of it. When you inhale the diaghragm expands due to the amount of air taken in. BUt when you exhale the diaghphram with the air goes up due to the fastness and the force of the air being rushed out.
 
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