Answer:
Deep, deep, do they go. Spreading out as they go. Never needing any air. They are sometimes as fine as hair
Temporary evidence of where you've been strolling
You can do this with your friends. You can do this with your nose. But don't do it with your friend's nose!
What ends in E, starts with E and has a letter inside it?
My second is performed by my first, and it is thought a thief by the marks of my whole might be caught.
It flows out of the soil, It burns you if it boils, And holds us in its coils, More valuable than gold, As black as it is old.