Which of the following involves the decomposition enzymic action?

The process that involves the decomposition enzymic action is "fermentation". Fermentation is a metabolic process that converts sugar into acids, gases or alcohol in the absence of oxygen. During fermentation, microorganisms such as bacteria or yeast use enzymes to break down the sugar molecules into simpler compounds, releasing energy in the process. This enzymatic action causes the fermentation process to occur. In contrast, esterification is a chemical reaction between an alcohol and a carboxylic acid, which does not involve enzymic action. Dehydration is a chemical process that removes water from a substance, and polymerization is a chemical reaction that combines many small molecules to form a larger molecule. Both of these processes also do not involve enzymic action. Saponification is a chemical reaction between a fat or oil and a strong base, which involves the hydrolysis of ester bonds. Although saponification may involve the action of enzymes, it is not primarily a process that involves enzymic decomposition.