Single-celled organisms are the main agents in nutrient cycling in soils. Their impact on the carbon cycle can be demonstrated, but not instantly.
Redox and oxidation is one of the key chemical reactions that happen commonly within nearly all soils. Here we demonstrate redox using soil containing high levels of iron, by placing it in water.
Here we look at the materials which makeup organic matter in the environment right now, to predict the formation of future soils.