Duff
Duff.
you are likely because it is organic matter formed from decayed plant and animal remain ,and is called humus.
The Topsoil
fossil
Decayed plant and animal matter.
humus
The organic matter in soil is called humus.
HUmus
crude oil
IIt is called organic matter.
The Rigolirh, the roots are found in the Bedrock.
It is soil. _________________ Maybe you're speaking of Humus.
it is humus