Which answer choice best describes the difference between island arcs and hotspot volcanoes?
Island arcs form only at divergent plate boundaries, whereas hotspot volcanoes form only at convergent plate boundaries.
Island arcs form only at convergent plate boundaries, whereas hotspot volcanoes form only at divergent plate boundaries.
Island arcs form when hot, fluid rock rises through thin spots in Earth's crust, whereas hotspot volcanoes form when two oceanic plate boundaries push against each other until subduction happens and the plates partially melt.
Island arcs form when two oceanic plate boundaries push against each other until subduction happens and the plates partially melt, whereas hotspot volcanoes form when hot, fluid rock rises through thin spots in Earth's crust.
