Oxidation and Reduction: Oxidation and reduction reactions are involved in both photography and composting. In photography, the developer chemical oxidizes the exposed silver halide crystals on the film or paper, while the fixer chemical reduces the remaining silver halide to prevent further exposure. In composting, microorganisms oxidize organic matter through aerobic decomposition, breaking it down into simpler compounds.
pH Regulation: Both photography and composting may require pH regulation. In photography, different chemicals and baths used during development and fixing have specific pH requirements to ensure proper image formation. In composting, maintaining the right pH level is important for the activity of microorganisms and decomposition processes.