Define composting.

Composting refers to the biological process in which organic matter, such as food scraps, yard waste, and other biodegradable materials, decompose into a nutrient-rich substance known as compost. This process involves the breakdown of organic materials by microorganisms, such as bacteria and fungi, in the presence of oxygen, which helps to accelerate decomposition.

The result of composting is a dark, crumbly soil amendment that can be used to enhance soil health, improve its structure, and provide essential nutrients for plants. It helps reduce waste and contributes to sustainable practices by returning nutrients to the soil, thereby promoting a healthier ecosystem.

Other options do not align with the definition of composting. The combustion of organic waste, as mentioned in the first option, pertains to incineration rather than composting. The recycling of inorganic materials, referred to in the second option, deals with materials like metals or plastics, which are not related to the composting process. Finally, landfills are a method of waste disposal that contrasts with composting, as composting actively converts waste into a beneficial product, rather than storing it in a landfill.