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.
Answer:
Question 1
answer: all of the choices are correct
Question 2
Early childhood
Question 3
Infancy
B . Push blood from the vertices to the arteries , and ventricles push blood from the veins to the atria