Usercreation4896892a7d8e9b39d05b Question4

IQ Question. This question tests your IQ to find the best Usercreation4896892a7d8e9b39d05b for you.

Why is it that when we are humming and then we plug our nose, our humming stops? Do people really hum through their nose, or their mouths?

Quantum Physics Good Point Dunno