Question

please help urgently​

Answer 1

Answer:

1)Larynx.

2)units of frequency.

3)Micro review.

Hope this are helpful for you .sorry i don't no this are

Answer 2

Answer:

$heya \: \\ answer$

1)Larynx or voice box

2) subsonic or infrasonic sound

3)Auditory nerve

4) Noise

5) noise pollution

6) solids

7) Ultrasonic sound

8)Time period

9)80dB

10) Pollution exposure from cars

11) About 20Hz to kHz