Physics
According to the Second Law of Motion, for a given force, acceleration is inversely proportional to the ________ of an object.

Volume
Density
Mass
Force

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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 fluctuates and finally decreases drastically
The blood pressure of a person increases at high altitudes

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