Answer:
It's tough as nails, Or soft as snow. People use it for their rink, Some just put in their drink.
How many bricks does it take to complete a building made of brick?
What is used by man, tossed by trees, everywhere but unseen?
You can have it, and be at it, But it never lasts forever.
What runs around the whole yard without moving?
Almost everyone needs it, asks for it, gives it. But almost nobody takes it.