If you are going to the south pole on an expedition, what kind of thermometer will you take with you - mercury or alcohol? Why?

When you are going to the south pole on an expedition, It is better to take an alcohol thermometer, because the freezing point of alcohol is lower than that of mercury.

At the south pole, the temperatures are very low. A frozen liquid cannot move in a tube. Therefore it is better to use an alcohol thermometer than a mercury thermometer at the south pole.
 

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Updated on: 10-Oct-2022

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