Answer:
What has roots that nobody sees, and is taller than trees. Up, up it goes, and yet it never grows.
What has a head and a tail but no body?
This type of food, which is a fungus, is often served on supreme pizza, in spaghetti and in a particular "cream of" style soup
What gets broken without being held?
The more you look at it, The less you see.
I am the fountain from which no one can drink. For many I am considered a necessary link. Like gold to all I am sought for, but my continued death brings wealth for all to want more.