system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: What happens to atoms when a body dies and decomposes?
gpt
Most of them relocate to other areas. This happens in a number of ways.

- The molecules that they are in decompose into a gas that is given off and blows away.

- The molecules they are in get eaten by bacteria, bugs, worms, maggots or other little beasties. These often turn into adult bugs, worms, maggots and other beasties and travel away, or get turned into stuff that kind of liquefies and gets digested further in other plants or animals.

- They stay behind and, over many years, are washed away or moved away by land or water movements, including movements such as getting sucked up as nutrients into trees.

- They stay behind and crumble into the regions of soil around them or are washed away by water movements. Most bones eventually do this.

- A very few get transformed into rock or petrochemicals, which creates fossils or coal.