Soil horizons and erosion (article) | Khan Academy
https://www.khanacademy.org/science/ap-college-environmental-science/x0b0e430a38ebd23f:earth-systems-and-resources/x0b0e430a38ebd23f:earths-soil/a/soil-horizons-and-erosion
Web ResultSoil horizons and erosion. Google Classroom. Review your understanding of soil formation, soil horizons, and erosion in this free article aligned to AP standards. Key points. Soil is the loose surface material that covers most land. Soil is a mixture of minerals, organic matter, living organisms, gases, and water.
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