physical volcanoes effect physical static
physical_state_change_event is physical_destruction_event. volcanoes is physical_phenomena. physical_state_change_event is physical_transformation. force is physical_phenomenon. physical_transformation is physical_event. polarization is physical_event. physical_synthesis is physical_creation_event. conduction is physical_phenomenon. physical_state_change_event is physical_creation_event. refraction is physical_phenomenon.