What Am I Riddles

Question: I'm the son of water, but when I return to water, I die. Who am I?

Question: Alive without breath. As cold as death. Never thirsty ever drinking. All in mail never clinking.

Question: Within me you can find gold Also 'The Greatest', if I should be so bold. Unfortunately, as you might see 'The Worst' is also apart of me. What am I?

Question: im fast and slow I go everywhere you go yet you cannot see me im in tree's in the sky in plants and in your body pretty much you need me to survive what am I?

Question: I am immobile yet I move, I am individual, but I reside with with my own, I am either brought up organized or disheveled, My existence brings satisfaction, other times pain. What am I?