What’s the thing hanging in the back of your throat?
What is the purpose of that little thing that hangs down in the back of your throat? It’s called the uvula, and here are the basics.
What’s that blue liquid in a porta-potty?
I’m almost afraid to ask, but what is that blue liquid stuff in the bottom of a portable toilet? If I drop something in it (ewww) is it safe to grab it out?