FORESTRY
SOIL SCIENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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topsoil
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subsoil
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bedrock
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None of the above
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Detailed explanation-1: -Just below the topsoil lies another layer called subsoil or horizon-B. It is comparatively harder and compact than topsoil. It is lighter in color than the topsoil because there is less humus in this layer. This layer is less organic but is rich in minerals brought down from the topsoil.
Detailed explanation-2: -B-horizon: The next layer of the soil from the top is known as B-horizon. This layer is harder and more compact than the top soil. This is generally known as the middle layer of soil. This is less rich in humus but contains most of the minerals present in the soil.
Detailed explanation-3: -Topsoil, subsoil and bedrock are three different layers with unique characteristics. Top soil is the first soil layer, rich in nutrients and moisture. Subsoil is the middle soil layer, rich in minerals. And bedrock is the bottom layer, made of rock.
Detailed explanation-4: -Below the topsoil is the subsoil. This part of the soil is a mixture of sand, silt, and clay. This layer is rich in minerals.