Volcanism is more likely on a planet that Volcanism is more likely on a planet that has high internal temperatures. is struck often by meteors and solar system debris. doesn't have an atmosphere or oceans. is closer to the Sun.

Volcanisim is more likely on a planet that has high internal temperatures. The connection of volcanisim is with the movement of magma (molten material due to high temperatures) and the earth's surface not with the external factors like it's position from the sun or meteors etc.