Weathering Apr 2023

Soil formation
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Definitions

The pedosphere is the uppermost layer of the Earth’s crust and is compromised entirely of soil layers.

Pedogenesis is the process of pedosphere formation.

Full articles

https://en.wikipedia.org/wiki/Soil_formation

Discussion of Pedosphere

Discussion of Pedogenesis

Where does soil come from?

Weathering and Erosion — from Khan Academy

Pioneer species (lichen)

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