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Subjects
Science CBSE
Class 6
Water
Textbook questions
9.
Exercise IX
Exercise condition:
5
m.
To clean their spectacles, people often breathe out on glasses to make them wet. Explain why the glasses become wet.
Exhaled
Polluted
Inhaled
air contains
carbon dioxide
oxygen
nitrogen
as well as
dust particles
water vapour
smoke
. During
inhalation
pollution
exhalation
, the
dust particles
water vapour
smoke
collides with the glass's surface and
vaporises
passes
condenses
, causing it to become wet.
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