1. Volcanism: When tectonic plates collide, one plate can be forced beneath the other (subduction). This process melts the descending plate, creating magma that rises to the surface and erupts as volcanoes. This is why many volcanoes are found along plate boundaries, like the "Ring of Fire" around the Pacific Ocean.
2. Earthquakes: Tectonic plates are constantly moving, and their interactions at boundaries can cause earthquakes. When plates slide past each other (transform boundaries) or collide (convergent boundaries), the built-up pressure is suddenly released, causing the ground to shake. These areas are prone to frequent earthquakes.
