Dead and decayed remains of plants and animals, called Humus.
Organic layers are part of the soil.
inorganic soil layers are layers of broken down rock that have become soil without the organic material (such as: leaves, grass, decomposed life forms) . The Bedrock and Parts of the Parent Material are inorganic soil layers.
There are four layers and the four layers are top layer called the organic layer, Upper soil layer, middle soil layer, and the last one is lowest layer.
More organic matter in the humus layerthan in deeper layers.
It would seem to suggest the level of compaction of the top layers of soil. Rainfall, decomposition of organic matter and the overall composition of the soil (abundance of clay acts as an impermeable) will be major influences in compaction or settlement of the layers.
Soil horizons are layers of soil that differ in composition. The uppermost layer is typically organic matter (this is where living organisms are found). As you proceed down into the soil, you will find older and older layers. Each layer, or horizon, was formed under different environmental circumstances. Environmental conditions and availability of minerals are what makes the layers differ.
More organic material, compost, makes the top soil darker and more beneficial for growth of plants/
Organic Soil Organic Soil
yes, soil have diffrent types of layers in it...................
Soil LayersThe layers of soil are:Top SoilSub SoilParent Materialbedrock
Organic Layer - plant litter Surface Layer - mineral and organic mixture Subsoil - contains clay, iron, aluminium Substratum - parent material
soil layers are called horizons