Class 9 Geography Chapter 3 Notes | Atmosphere and Climate | New NCERT 2026–27 | Understanding Society: India and Beyond

Chapter 3: Atmosphere and Climate Part 1: Atmosphere – Composition, Structure and Layers Book: Understanding Society: India and Beyond (Class 9 NCERT 2026–27) Introduction The Earth is the only known planet that supports life. One of the main reasons for this is the atmosphere , a blanket of gases surrounding the Earth. The atmosphere protects living organisms from harmful solar radiation,…