Which of the following practices is involved in the oxidation process?

The practice involved in the oxidation process is decomposition. Decomposition is a biological and chemical process in which organic matter breaks down into simpler substances. This process often involves the oxidation of organic materials, where microorganisms such as bacteria and fungi consume dead plant and animal matter and convert it into more stable forms of nutrients. During this process, carbon from the organic material is released in the form of carbon dioxide through respiration, while other elements are transformed into their oxidized states.

The other options, while related to chemical reactions and biological processes, are not primarily driven by oxidation. Stabilization generally refers to methods used to enhance the physical and chemical properties of soils or organic materials but does not specifically involve oxidation. Fermentation is an anaerobic process where organisms convert sugars into acids, gases, or alcohol, rather than involving oxidation directly. Evaporation is a physical process where liquid turns into vapor and does not pertain to oxidation in the biological or chemical sense.