SOMEONE PLEASE HELP ME URGENTLY
WILL MARK AS BRAINLIEST

Ifound this on google “your outer ear collects sound waves and reflects them into a tiny tube called the ear canal. at the end of the ear canal is a thin, skin-like membrane stretched tightly over the opening, called the eardrum.” i hope this you for what your looking for

  concave means having an outline or surface that curves inward like the interior of a circle or sphere. so the mirror curves inward.