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Soil profile
The vertical layered structure of soil is called the soil profile. There are 4 main horizons in a soil profile. O - horizon is the organic layer composed of dead organic residues. A - horizon is the top soil, the upper most la..
The vertical layered structure of soil is called the soil profile. There are 4 main horizons in a soil profile. O - horizon is the organic layer composed of dead organic residues. A - horizon is the top soil, the upper most la..
