Why are mercury and alchohol used in thermometers?
A
Because they are very cheap.
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B
Because they are less sensitive to temperature variations.
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C
Because they are highly sensitive to temperature variations.
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D
Because they are easily available.
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Solution
The correct option is C Because they are highly sensitive to temperature variations. Mercury or alcohol is used in the thermometers. This is because these materials are highly sensitive to temperature variations.