How many headz that humans hear

1.	How many headz that humans hear
Answer» Explanation: The human EAR responds to FREQUENCIES in the range of 20 Hz to 20,000 Hz (20 kHz),18 although most speech frequencies lie between 100 and 4,000 Hz. Frequencies above 20,000 Hz are referred to as ultrasonic. Though ultrasonic frequencies are outside the range of human PERCEPTION, many animals can hear these SOUNDS.

Answer»

Explanation:

The human EAR responds to FREQUENCIES in the range of 20 Hz to 20,000 Hz (20 kHz),18 although most speech frequencies lie between 100 and 4,000 Hz. Frequencies above 20,000 Hz are referred to as ultrasonic. Though ultrasonic frequencies are outside the range of human PERCEPTION, many animals can hear these SOUNDS.

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How many headz that humans hear​

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How many headz that humans hear