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2016-03-06T16:16:02+05:30

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When we breathe on the spectacle glasses, the moisture we breathe out due to respiration, settles on the glasses and cools down to form water....which helps us in  cleaning the glasses....
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nice answer
Thanks
pls mark as brainliest.....
2016-03-06T16:27:38+05:30
it makes vapours on glass by our respiration air
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