Oxygen, hydrogen, sulfur, and phosphorus all common to all organisms. hope this helps!
Its the 1st option (Adult to register.....)
You can tell when he works he is messy, which sets him up as a messy worker, with possible mistakes. It shows that the reason he is messy is that he is focused.
This is what I got from this.
From everything I could find it was Carl himself, But if you heard the poem online somewhere it could've been anywhere. Where did you hear it?