Answer:
It could point her in a direction that best suits her
Explanation:
Hope that helps!
less than 20 Hz
The frequency of subsonic sound is less than 20 Hz
subsonic sound refers to a sound which has a wave that travels slower than the speed of sound.
- frequency of audible sound: 20 Hz to 20,000 Hz
<u>Thus </u>subsonic sound < 20 Hz
I believe the answer would be oxygeon deficit.
There is about equal amounts of each.