Question : Which layer of the soil has a maximum concentration of humus?
Option 1: Parent rock
Option 2: Weathered rock material
Option 3: Topsoil
Option 4: Subsoil
Correct Answer: Topsoil
Solution : The correct answer is Topsoil
Topsoil contains the highest concentration of humus. The deeper we go, the less humus there is. The majority of living things reside in the topsoil layer. There are different kinds of soil, each with unique properties. The topsoil and subsoil are the two primary layers that most soil profiles cover.
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