1.

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

A. he pressure of blood in capillaries is greater than the outside pressure
B. he pressure at high altitudes is greater than that on the plains
C. he blood pressure of a person increases at high altitudes
D. he blood pressure fluctuates and finally decreases drastically
Answer» D. he blood pressure fluctuates and finally decreases drastically


Discussion

No Comment Found