What is audible sound? Choose only ONE best answer. A Sound out...

What is audible sound? Choose only ONE best answer. A Sound waves with frequencies above human...

What is infrasound? Choose only ONE best answer. A Sound above human hearing range B Sound wi...

What does ultrasound mean? Choose only ONE best answer. A Sound below human hearing range B S...

What does ultrasound refer to? Choose only ONE best answer. A Sound waves with frequencies belo...

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