1. What does the Plate Tectonics Theory primarily explain?
2. What is the Earth's core primarily composed of?
3. What was the primary purpose of the historical development of the plate tectonics theory?
Plate Tectonics — what causes surface features?
Movement of Earth's lithospheric plates.
Earth's Layers — composition?
Crust, mantle, core with distinct properties.
Historical Development — key evidence?
Seafloor spreading and paleomagnetic data.
Tectonic Plates — definition?
Large, rigid Earth's lithosphere pieces that move.
Lithosphere vs Asthenosphere — difference?
Lithosphere is rigid; asthenosphere semi-fluid.
Seafloor Spreading — process?
New crust forms at divergent boundaries.
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