The term 'Soil Builder' is a job description for someone who uses COMPOST to improve the quality of soil. COMPOST is organic matter that has been decomposed and recycled as a fertilizer and soil amendment. Composting is a process of breaking down organic material into a nutrient-rich material that can be used to improve soil structure, increase water retention, and provide essential nutrients for plants. Composting also helps reduce waste by diverting organic material from landfills.