Question

what are the different layers of soil ?

Answer 1

Soil has different layers, which are called horizons. These layers begin with leaf litter, and end with the bed rock. The layers are:

[i] Leaf litter- This layer is the topmost layer and consists of leaf litter and decomposed organic matter. Above this layer are the plants' shoots.

[ii] Topsoil- This layer is slightly dark in color. It is made up of humus. Seeds germinate here.

[iii] Leaching layer- This layer is light in color. It is the third layer of soil. This layer is deprived of minerals because of the process of eluviation. 

[iv] Subsoil- This layer contains mineral deposits. It gets its minerals from drips from the layer above (through process of eluviation).

[v] Regolith- This is the second last layer of soil. This has broken-up rocks from the bed rock. Plant roots and organic material are nil here.
 
[vi] Bed rock- The last comes the bed rock. This is made up of unweathered rocks and is below all the other layers.  

Answer 2

Explanation:

There are different layers of soil. The different layers of soil is called soil profile.

The section of the soil has four layers.

1.) A - horizon

2.) B - horizon

3.) C - horizon

4.) Bedrock

1.) A horizon :A horizon is also known as topsoil.It contains sand , clay , small organisms and humus.

2.)B horizon :This layer is just below the A horizon. It contains lesser amount of humus but large amount of mineral.

3.)C horizon :This is the third layer of the soil profile. It contains small rocks, lumps and it is not fertile.

4.)Bedrock :This is the last layer of the soil profil .It contains big sized rocks and crevices.