This layer is made up of slightly bigger rock particles and is harder and more compact as compared to the topsoil. Roots of trees are able to reach this layer.
subsoil
It is the coarsest and driest type of soil. It is suitable for plants that require less water. It allows air circulation, but cannot hold water for long.
sand
It mainly consists of partially broken or weathered rocks.
parent material
True or False: R horizon is above the O horizon in the layers of soil.
False
True or False: Dark-colored soils are usually fertile.
True
What is the texture of sand?
rocky or coarse
What layer is in between topsoil and subsoil?
eluviation layer or E horizon
Which among the kinds of soil is most fertile?
loam
What type of soil has the biggest particles?
sand
What are the 5 layers of the soil?
humus, topsoil, subsoil, parent material, and bedrock
This is the top layer of soil that is made up of living and decomposed materials, like leaves, plants, and bugs.
Humus
True or False: Weathered rocks are usually found in the bedrock.
False.
True or False: Soils have different water-holding capacities.
True
It is good for growing vegetables, such as pechay and tomato.
loam
What is the texture of clay when wet?
smooth and sticky
Which layer of soil is very thin and is usually dark in color?
humus
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