Teachers are categorized in four main classes in Bangladesh at University level. The ascending rank of teacher is Lecturer, Assistant Professor, Associate Professor and Professor. The initial position Lecturer is generally enrolled as the top student of the class. Master's degree is required for normal university level Lecturer.
Humus soil is soil made up of decayed organic material. Popularly, it refers to soil that is light in texture, dark brown or black in color, and sweet-smelling.
Humus Layer. This term is sometimes used to describe an upper level of soil â that dark black layer, such as in âthat humusy layer of soilâ. Although the dark color is probably due to humus, humus is not a layer in soil. There is no such thing as a âhumus layerâ.umus Layer. This term is sometimes used to describe an upper level of soil â that dark black layer, such as in âthat humusy layer of soilâ. Although the dark color is probably due to humus, humus is not a layer in soil. There is no such thing as a âhumus layerâ.