Physics
The combined gas law relates which of the following?

Volume & Temperature
Volume, Temperature & Pressure
Volume & Pressure
Temperature & Pressure

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

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