Topsoil vs. Garden Soil: What the Difference? - The Spruce
https://www.thespruce.com/topsoil-vs-garden-soil-7501844
Web ResultJun 7, 2023 · Topsoil is the uppermost layer of the earth's crust composed of clay, sand and silt. It consists of minerals broken down from different types of rock, wood, leaves and other organic materials. It is active with organisms, microorganisms and bacteria working to break down solids into nutrients that support all plant life. …
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