Composting
Composting is an aerobic microbial process. Microorganisms found in the air and soil use enzymatic and metabolic processes to degrade organic matter into simple compounds. Compost converts your apple core, banana peel, pizza crust, etc. into a brown, odorless, soil-like material called humus (not to be confused with hummus). The composting process makes nutrients in the organic matter more available for plants. The microbial metabolism also generates heat during composting, which kills pathogens and sanitizes compost.