Answer:
You can always see it, but it's too far away to touch. Mountains rest on it, and at sea it surrounds you. What is it?
My head bobs lazily in the sun. You think I'm cute. For my face is yellow my hair is white and my body is green.
Looks like water, but it's heat. Sits on sand, lays on concrete. A play on the eyes, but it's all lies.
What letter comes next: O T T F F S S ?
The sun bakes them, the hand breaks them, the foot treads on them, and the mouth tastes them.
You use it between your head and your toes, the more it works the thinner it grows.