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Breathing and exchange of gas - class-XI

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Multiple Choice

According to Boyle's law, the product of:.pressure and volume is a constant. Hence,

  1. if volume of lungs is increased, then pressure decreases proportionately
  2. if volume of lungs is increased, then pressure also increases proportionately
  3. if volume of lungs is increased, then pressure decreases disproportionately
  4. if volume of lungs is increased, then pressure remains the same.
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