Question

Plz help on the 3 questions!
Sound waves produced by a vibrating object are _____.
Loudness is the human perception of sound wave _____.
The process of detecting objects by bouncing sounds off them is called _____.

Answer 1

(a)compressional waves

(b) of sound wave intensity.

(c) Echolocation.

Answer 2

compressional waves cant be called as 'longitudinal waves'

Answer 3

Thanks Guys