The dark organic material in soil.

The fertile, upper part of the soil.

The middle layer of soil, mostly made of clay.

The bottom layer of soil which is made up of partially weathered rock.

Completely unweathered rock that is hard to break.

All 3 layers of soil together as one piece.

The mechanical or chemical breakdown of rock.

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Soil

This is a Study Stack that I made for Soil.

Term	Definition
Humus	The dark organic material in soil.
Topsoil(Horizon A)	The fertile, upper part of the soil.
Subsoil(Horizon B)	The middle layer of soil, mostly made of clay.
Horizon C	The bottom layer of soil which is made up of partially weathered rock.
Bedrock	Completely unweathered rock that is hard to break.
Soil Profile	All 3 layers of soil together as one piece.
Weathering	The mechanical or chemical breakdown of rock.
Erosion