Final answer:
The theory of plate tectonics states that the Earth's lithosphere is broken into tectonic plates that are constantly moving and interacting. This movement can cause earthquakes, mountains, and the formation of new oceanic crust.
Step-by-step explanation:
The Theory of Plate Tectonics
The theory of plate tectonics states that the Earth's outer layer, called the lithosphere, is broken into several large and small pieces, called tectonic plates. These plates are constantly moving and interacting with each other. The movement of the plates is driven by convection currents in the underlying semi-fluid asthenosphere.
As the tectonic plates move, they can collide, separate, or slide past each other, causing a variety of geologic phenomena. This includes the formation of mountains, earthquakes, and the creation of new oceanic crust through seafloor spreading.
For example, the Pacific Ring of Fire is a region where several tectonic plates converge, resulting in intense seismic activity and volcanic eruptions.
Learn more about Plate tectonics