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The liquid in a thermometer __________ and rises when it is exposed to warm air.

User Makboney
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3 votes
your answer is mercury
User Jason Rebelo Neves
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The answer is not mercury, mercury being the liquid, but i see your confusion. The answerr is actually: expands, due to the fact that the mercury in the thermometer expands when it is heated.
User Martin Parenteau
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