Final answer:
Plate tectonics is supported by evidence such as seafloor features, earthquakes, and volcanoes.
Step-by-step explanation:
Plate tectonics is a theory that explains the movement of Earth's lithosphere, which is made up of large plates that float on the semi-fluid asthenosphere. One of the main pieces of evidence for plate tectonics is the study of seafloor features. The discovery of mid-ocean ridges, deep-sea trenches, and transform faults supports the idea of tectonic plate movement.
For example, the Mid-Atlantic Ridge is a long mountain range running through the middle of the Atlantic Ocean. It is formed by the upwelling of molten material from the mantle, creating new crust and causing the seafloor to spread apart. This process, known as seafloor spreading, provides direct evidence for plate movement.
Furthermore, the distribution of earthquakes and volcanoes along plate boundaries also supports the concept of plate tectonics. Most earthquakes occur along plate boundaries, where tectonic forces cause rocks to break, while volcanoes often form where plates collide or separate, releasing molten rock from the mantle.
Learn more about evidence for plate tectonics