Plate tectonics is the theory that Earth's outer layer, the lithosphere, is divided into several plates that glide over the mantle, the rocky inner layer above the core. These plates are constantly moving, interacting in a process called plate tectonics. This movement causes earthquakes, volcanic eruptions, mountain building, and oceanic trench formation.
Understanding plate tectonics helps us explain many geological phenomena. There are three types of plate boundaries: convergent (plates collide), divergent (plates separate), and transform (plates slide past each other).
Match the term with its correct definition:
| Term | Definition |
|---|---|
| 1. Lithosphere | A. Boundary where plates slide past each other horizontally. |
| 2. Asthenosphere | B. Boundary where plates move away from each other. |
| 3. Convergent Boundary | C. The rigid outer layer of the Earth, including the crust and upper mantle. |
| 4. Divergent Boundary | D. Boundary where plates collide. |
| 5. Transform Boundary | E. The plastic-like layer of the mantle below the lithosphere. |
Complete the following paragraph using the words provided: earthquakes, volcanoes, mantle, plates, boundaries.
The Earth's surface is broken into large pieces called _____. These _____ float on the _____. Most _____ and _____ occur near plate _____, where the plates interact.
Explain how the theory of plate tectonics helps us understand the formation of mountain ranges like the Himalayas.
Please log in to post your answer.
Log InEarn 2 Points for answering. If your answer is selected as the best, you'll get +20 Points! 🚀