What is earwax? What is its function?

(N/A) Earwax,also known as cerumen,is a yellowish,waxy substance secreted by the ceruminous glands located in the outer part of the auditory canal.
Its primary functions include:
$1$. Protection: It traps dust,debris,and microorganisms,preventing them from reaching the delicate eardrum.
$2$. Lubrication: It keeps the skin lining of the auditory canal moisturized,preventing it from becoming dry and itchy.
$3$. Antimicrobial properties: It contains substances that help inhibit the growth of certain bacteria and fungi.