A convergent boundary is a type of tectonic plate boundary where two plates move toward each other. This interaction can lead to one plate being forced beneath the other in a process called subduction. Convergent boundaries are often associated with mountain building, earthquakes, and volcanic activity. There are three main types of convergent boundaries: oceanic-continental, oceanic-oceanic, and continental-continental. Each type results in different geological features, such as trenches, volcanoes, or mountain ranges. These boundaries play a crucial role in shaping the Earth's surface and are vital to understanding plate tectonics.