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Subject :Physics    Class : Class 7

See the following picture of laboratory thermometer and answer the questions.

Thermometers are used to measure the temperature. Thermometer senses the temperature by which one of the following liquids?

A Sulfur based fluid
B Potassium based fluid
C Hydrocarbon based fluid
D None of these

T̵h̵e̵n̵ w̵h̵a̵t̵ it is

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