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How does the air from the …

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How does the air from the mouth help in cleaning the spectacles
  • 1 answers

Ananth Dev 6 years, 8 months ago

When you breath in air, you also breath in water vapor. ... When the air exits your body (if there is something colder than the air that you exhale in front of your mouth ( in this case a pair of spectacles )), the water vapor condenses on the spectacles so there is water on your spectacles so you can wipe your spectacles.
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