system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5:Why does garbage always seem to have a common smell regardless of what's in it?

??
gpt
The smell is composed of small Nitrogen and Sulfur based molecules, produced when microbes break down organic matter. So as long as it's organic material. Because these molecules are small, they are easily blown into the air and up your nose. It does not really matter what you start out with, it all ends up as the same sets of small molecules once the bacteria are through with it.