Define decomposition and describe the processes and products of decoposition .

Explanation

Decomposition is the process of breaking down a substance into its constituent parts . It is a complex , enzymatic that involves step wise degradation of detritus . It involves three steps - fragmentation of detritus , leaching and catabolism involving humification and mineralisation . Humification results in the formation of humus in soil . Mineralisation results in the release of inorganic substances `(CO_(2) , H_(2) O)` and nutrients in the soil .