. Go to a doctor or your nearest Health Centre observe the doctor taking temperature of patient enquiry. Aicd if the thermometer in a liquid before use
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A thermometer has a glass tube fixed at the two closures and is incompletely loaded with a fluid like mercury or liquor. As the temperature around the thermometer's knob warms up, the liquid ascents in the glass tube.
When it is hot, the liquid inside the thermometer will grow and ascend in the tube.
When it is hot, the liquid inside the thermometer will grow and ascend in the tube.
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