What exactly is dirt?


What exactly is dirt?

In: Chemistry

A smorgasbord of one or more of the following:

– Rotted plant matter (this makes up the bulk)
– Processed (and unprocessed) fecal matter
– Rock dust / rocks
– Decayed animals, insects and other organisms

Various creatures that live in soil, including worms, springtails, snails, slugs etc etc “process” stuff into other stuff, and eventually that turns into dirt.

If by dirt, you mean soil, take a look at: [https://en.wikipedia.org/wiki/Soil](https://en.wikipedia.org/wiki/Soil) . As the other person said, soil is a complex mixture of different things, including sand, silt, and clay at various percentages (take a look at the triangular diagram 1/4 of the way down), lots of other trace minerals, and then lots of organic matter (plant, animal, waste; some alive, some deceased), and water.

‘Dirt’, as distinct from soil, is the mineral (i.e. dead) part or it is disturbed soil that isn’t supporting life.

It is the matter that contributes to the Law of Conservation of Mass Energy. It is all of the things that are neither created nor destroyed.

Very small rocks
Very small pieces of dead plants and animals
Very small peices of poo
A tiny bit of water usually
Some tiny things from space (very small amount of this)

Dirt is hurt or dead soil, lack of microbe and fungal activity. Soil is live and is great for growing in, dirt is dry and dusts easily.