Does it just get re-circulated? You clean your place and make your neighbour’s place dirty, and vice versa?
In: 1751
More broadly speaking, dust is a type of [sediment](https://en.wikipedia.org/wiki/Sediment). It gets transported by wind and water. Some of it accumulate in places (esp. bottom of lakes and oceans) and may eventually turn into sedimentary rock. Some of it circulates.
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