Answer:
C.By fluid being trapped in the middle ear
Explanation:
If had one before after swimming and the doctor said that some of the chlorine water got stuck in my ear which cause the infection.
1.a 2.c 3.d. 4.b 5.e 6.g 7.f 8.h 9.j 10.i
The use of extreme cold in surgery and other medical treatments
Heart failure, sometimes known as congestive heart failure, occurs when your heart muscle doesn't pump blood as well as it should. Certain conditions, such as narrowed arteries in your heart (coronary artery disease) or high blood pressure, gradually leave your heart too weak or stiff to fill and pump efficiently.