Home » Regenerative Materials » What Is the Third Layer of Soil? What Is the Third Layer of Soil? James H. Sterling • Oct 19, 2026 • 7 min read ★ Key Takeaways The Third Layer of the Soil Is Called Parent Rock. Want to know more about What Is the Third Layer of Soil? We break down the latest insights in simple terms. Direct Answer • Key Takeaway The Third Layer of the Soil Is Called Parent Rock. Frequently Asked Questions Share Article: Facebook Twitter WhatsApp Telegram Author James H. Sterling James Sterling reports on renewable energy developments, climate policy, ecological conservation, and green tech innovations around the globe.