Question

Bats use ultrasound in echolocation. This sound is characterized by _____.

A. low frequency
B. low amplitude
C. high frequency
D. high amplitude

Answer 1

High frequency, as humans cannot hear the sound of the bats using echolocation because of it's such high frequency.
Hope this helps :)

Answer 2

C. high frequency

Step-by-step explanation:

Bats use high frequency sound waves -ultra sound (20 to 200 kHz) to locate their prey via a technique -echolocation. The produce these sound waves and when the waves reflect from a prey nearby, they are able to estimate the size, position and speed of their prey. The human hearing range is up to 20 kHz, so we can hear the sound produced by some of the bats.