Which graph shows an object with constant acceleration?

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

Wooden , walls ,doors ,support

Ifound this answer online hope it

It is increased due to the doppler effect. (apex)