Earth’s Internal Structure Explained - Layers, Composition & Geology #3693622 (License: Personal Use)

This illustrated cross-section depicts Earth’s four main internal layers: the thin rocky crust, thick viscous mantle, liquid iron-nickel outer core, and solid inner core. A pickaxe symbolizes human exploration and mining, while the erupting volcano highlights surface manifestations of deep geological activity. The image combines educational clarity with engaging visual metaphor.

Used on educational science websites, geology course pages, or科普 (science outreach) content to explain planetary structure; matches user intent for learning basic earth science concepts visually.