“What does the upper layer of soil do?”


Even though humanity is becoming more urbanized every year, soil is still one of the strongest underpinnings of human civilization. However, what exactly about soil causes it to be so important? Well, it all has to do with the uppermost layer, known as the topsoil. The topsoil  is the top 5-20 centimeters of the Earth’s soil contains all of the essential nutrients for vegetation. Topsoil is filled with life microbial life which can break down dead organic matter present on the surface.

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