Kendra Simmons

What is soil?Foundation

for

all

land

Biomes.

Soil is Classified Divided into horizonsO HorizonA HorizonB HorizonC Horizon

Soil is Classified O Horizon

Most superficialContains fallen

leaves, grassroots, twigs and other organic material.

Soil is Classified A Horizon

Top soilEnriched mineral

nutrientshumus, iron,

aluminum silicates and clay.

Soil is Classified B Horizon

Bands of distinctive colorsDecomposed

materialPlant roots

Soil is Classified C Horizon

Deepest layerWeathered Parent

materialBed rock

Affected by :Organisms & Age

Affected by: Climate & Elevation