What Am I Riddles

Question: I float when I am born, lay down when I am alive, and run when I am dead. What am I?

Question: I am around everything, everything that lives because of me. What am I?

Question: I'm a measurement of time.
But you'll find me on a map, not a clock.

What am I?

Question: I know all, have seen all, yet I am not conscious. Looking back upon me shows mistakes and also good things. Looking in the middle of me shows opportunities to be exploited. Looking forward upon me shows the effects of decision. What am I?

Question: What smells better than it tastes?