Final answer:
The theory of plate tectonics explains the movement and interaction of lithospheric plates on Earth, which has evolved over time.
Step-by-step explanation:
The theory of plate tectonics explains the movement and interactions of large sections of the Earth's outer shell, called lithospheric plates. These plates float on the semi-fluid asthenosphere and are constantly moving, colliding, and sliding past each other.
Over time, the understanding of plate tectonics has changed as new evidence and research has emerged. Initially, the theory proposed that continents were once part of a single supercontinent called Pangaea and have since moved apart. Later, scientists discovered that the lithosphere is divided into multiple plates, each with its own distinct movements and boundaries.
Plate tectonics plays a crucial role in shaping the Earth's surface and geologic features. It is responsible for the formation of mountains, earthquakes, volcanic activity, and the distribution of land and oceanic crusts.
Learn more about Plate tectonics