Composting is a highly sustainable method of waste disposal. This process breaks down natural materials into smaller particles, which can then be used as soil and for other natural purposes.Adding compost to soil helps provide soil with extra nutrients. Compost has nitrogen, phosphorous, potassium, and micronutrients manganese, copper, iron, and zinc. This makes compost superior to commercial fertilizers which are often lacking micronutrients. Compost acts as a slow-release fertilizer since the organic materials all decompose at different times. Soil pH also benefits from compost because it neutral, helping to keep pH at the best level.