Final answer:
Mid-ocean ridges are places where tectonic plates are spreading apart. At a transform boundary, earthquakes can occur. Island arcs are created by the collision of a continental and an oceanic plate.
Step-by-step explanation:
8. Mid-ocean ridges are places where tectonic plates are spreading apart.
9. Geologic events that can occur at a transform boundary include earthquakes.
10. Island arcs are created by the collision of a continental and an oceanic plate.
Learn more about Plate Tectonics