EarthYP Edge Conference 2019 in Maui, Hawaii


Pasco, WA 99302

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Richland, WA 99352
(509) 438-1724

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Richland, WA 99352
(509) 627-1153

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Topsoil
From Wikipedia, the free encyclopedia
Topsoil is the upper, outermost layer of soil, usually the top 5–10 inches (13–25 cm). It has the highest concentration of organic matter and microorganisms and is where most of the Earth's biological soil activity occurs. Topsoil is composed of mineral particles, organic matter, water, and air. Organic matter varies in quantity on different soils. The strength of soil structure decreases with the presence of organic matter, creating weak bearing capacities.
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EarthYP Edge Conference 2019 in Maui, Hawaii