Question

15. Eustachian tube is meant for
O 1) Amplifying sound waves
O
id) To listen to activities of buccopharengeal
cavity
iii) Equalised pressure
on either side of
tympannum
O iv) To keep ear Moist​

Answer 1

3) equalised pressure its correct one

Answer 2

Answer:

The eustachian tube is a canal that connects the middle ear to the nasopharynx, which consists of the upper throat and the back of the nasal cavity. It controls the pressure within the middle ear, making it equal with the air pressure outside the body.