What Am I Riddles

Question: Touching me is inevitable, I send chills down spines, yet none fear me. What am I?

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?