I have no idea how to measure the difference between a hydrogen atom in something alive, and a hydrogen atom from space (that was presumably never part of a living creature). According to modern physics; you can’t measure it, because there is no difference.
As far as I’m concerned; this makes the whole question of “how to get life from non-life” kind of silly.
Also, I see things I might describe as non-life, becoming part of something I would describe as alive, all the time. It’s called photosynthesis.