Topsoil occurs in this layer, which is composed of a combination of organic debris and mineral matter

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Ginny

Chemistry

10 December, 13:14

Topsoil occurs in this layer, which is composed of a combination of organic debris and mineral matter

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Izabelle Evans · Answer 1

It is commonly called as "A horizon" or simply horizon. It is the upper and outermost layer of soil in which most of the biological activity occurs as it comprises of high concentrations of organic debris and matter which are essential for life.