Question

what is infrasonic sound​

Answer 1

Answer:

Explanation:

Infrasonic pertaining to vibration and sound waves whose frequency is too low is to be heard as sound by the human ear; I.e., below about 20 Hz.

Answer 2

Answer:

Infrasonic is a sound which frequencies are below 20 vibrations per second. Infrasonic sound cannot be heard by human because its frequency is too low. Animals that can hear infrasonic sound are for example cricket and dog

Explanation:

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From: KirbyandMetaknight~