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O horizon and A horizon

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Q: Which soil layers comprise the topsoil?
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Three layers of the soil with picture?

topsoil ,subsoil and bedrock


What are all the layers that make up the soil in an area?

The layers of soil in an area are the topsoil, subsoil, weathered rock and bedrock.


What layer layer of soil is the finest?

The topsoil is the finest soil layer. Soil 'layers' are called horizons.


What is a vertical picture of all the layers of soil?

topsoil ,subsoil and bedrock.


What layer or layers of soil includes rock particles mixed with dark products of decay?

the answer is TOPSOIL


What is the definition of soil profile?

Soil profile is how soil layers are formed.There are 4 soil layers. The last is the bedrock then it's the broken-down bedrock,next is the subsoil and the 1st and top soil is the topsoil.


Which soil layers comprimise soil layers?

Soil layers are called soil horizons. Typically, a soil includes an A horizon, a B horizon and a C horizon. In laymen's terms: A horizon = topsoil B horizon = subsoil C horizon = parent material (the stuff in which the soil formed)


What are the three layers that form the soil profile?

the answer is topsoil subsoil parent weathering bed rock


How many layers of soil?

3 layers of different kinds of soil is you count humus,5, (humus, topsoil, midsoil, poor soil, bedrock, you can call it 3 though, humus isn't actual soil its dacayed plants and animals)


The top layer of soil is called what?

Layers of soil are called horizons and labeled as O, A, E, B, C, and R. The top layer or horizon is O. It is made up of organic matter, and can be called topsoil.


Describe the layers of soil and how soil is made?

First layer of the soil is topsoil second is subsoil and last is bedrock. Soil was first made by God and you have to figure out how more and more keeps coming.


How does soil form layers?

Soil is made of 3 main layers: topsoil, subsoil and the layer of parent material. The topsoil contains most of the humus (which is a dark organic material of the soil), it is formed from the decay of various organisms The thick layer of soil below topsoil is subsoil, it is lighter in colour in comparison with the topsoil and often contains a lot of clay. Water carries minerals an other materials down into this layer and most tree roots grow down into the subsoil The bottom layer contains large rocks, this is the material from which the soil above is partly formed. The bottom layer is the parent material, these rocks break down into gravel, sand and clay that become part of the subsoil