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riadik2000 [5.3K]
3 years ago
8

Why does hair shorten when humidity decrease

Biology
2 answers:
arlik [135]3 years ago
7 0
The higher level of hydrogen bonds in humid air lead to a creation of more hydrogen bonds in adjacent molecules in the hair strand 
klio [65]3 years ago
3 0
Well, when humidity increases, the hair relaxes, so it gets longer, and when it decreases, the hair tightens, getting shorter.
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