Final answer:
Earthquakes are caused by plate movements, erosion moves sediments, and volcanoes contribute to mountain building.
Step-by-step explanation:
The geomorphic process of earthquakes is caused by tectonic plates uplifting and shifting the Earth's crust. These seismic events can result in the movement of sediments and the creation of islands in the oceans. On the other hand, erosion is a process that moves and wears away sediments through the action of water, wind, or glaciers. Finally, volcanoes are responsible for mountain building as they erupt and release molten rock, which can build up over time to form mountains.
Learn more about geomorphic processes