How does the decay of biomass in a compost bin plays a role in both the carbon cycle?

The decay of biomass in a compost bin is a key process in the carbon cycle as it involves the breakdown of organic matter by microorganisms, which release carbon dioxide (CO2) back into the atmosphere during respiration. This decomposition process transforms organic carbon into stable forms, enriching the soil with nutrients while sequestering some carbon in the form of humus. Additionally, the composting process helps to reduce greenhouse gas emissions by diverting organic waste from landfills, where it would otherwise produce methane, a potent greenhouse gas. Overall, composting contributes to both carbon cycling and soil health.