Question

Pitch This is when we describe a sound as high or low This changes as the frequency of the wave changes. Loudness Measured in decibels The amplitude of a sound wave. Bats use this for location. Sound waves bounce off a surface. An echo Reflection​

Answer 1

Step-by-step explanation:

an echo reflection is a phenomenon that occurs when the ultrasonic sound waves strike at a surface and comes back to the source.