What Am I Riddles

Question: Body of Steel Spits out Fire Feared by Man No Trace of Wire

Question: I will reward you with riches if you show acts of consideration. However, if your acts are ominous, I reward retribution. 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 always listen to my Master, I never disobey. From my path I never stray to destroy what's in my way. What am I?

Question: I am both black and white. I go with the flow and my loyalty never wavers.