FAQs What makes a healthy soil? What are urban soils? How do I know if my property is contaminated? How do I fix my contaminated soil? How do soils work? What is soil organic matter? Why is keeping soil covered important for soil health? Can I grow plants in contaminated soil? How do I make my own compost? What is soil biodiversity? What is soil pH and why is it important? What is the role of fertilizers? What is lead and how do I remediate it from soil? What is the link between healthy soils and nutritious food? How do soils recycle nutrients—all earth materials? Why are soils important?