Question

why does the clinic thermometer had a kink and its stem

Answer 1

It has a kink in its system to prevent the back flow of the mercury in thermometer. If the kink would not be there then there it will cause alot of destruction of the thermometer..
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Answer 2

Answer:

It has a kink in its system ro prevent the blackflow of the mercury in the thermometer . If the kink would not be there then it will cause a lot of destruction of the thermometer and it is dangerous.

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