Physics
Which of the following device is best suited for measuring the temperature inside metallurgical furnaces?

Thermocouple
Thermistor
Pyrometer
Thermometer

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Physics
Why does bleeding occur through the nose in high mountainous regions ?

The pressure of blood in capillaries is greater than the outside pressure
The blood pressure fluctuates and finally decreases drastically
The pressure at high altitudes is greater than that on the plains
The blood pressure of a person increases at high altitudes

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