Formation of humus
Kindly refer to the following link
https://www.meritnation.com/ask-answer/question/on-which-layer-of-soil-is-humus-found/evs/6703271
Formation of humus
Kindly refer to the following link
https://www.meritnation.com/ask-answer/question/on-which-layer-of-soil-is-humus-found/evs/6703271