hiccup hicÂ·cup or hicÂ·cough (hÄ­k'Ép) n. A spasm of the diaphragm causing sudden inhalation interrupted by spasmodic closure of the glottis, producing a characteristic noise.
Ancient Convergent Plate Boundary-Appalachian Mountain Range. The range is mostly located in the United States but extends into southeastern Canada, forming a zone from 100 to 300 mi (160 to 480 km) wide, running from the island of Newfoundland 1,500 mi (2,400 km) southwestward to Central Alabama in the United States.
Convergent Plate Boundaries. Convergent boundaries form where two plates collide. These boundaries often form major mountain chains. These boundaries are identified by their high mountains, volcanic island arc chains, and deep earthquakes.An ocean plate converges with a continental plate.ivergent Plate Boundaries. Divergent boundaries can be mid-ocean ridges or continental rift valleys. At these boundaries, two neighboring plates move away from each other. Continental rift valleys are characterized by normal faulting and basalt-rich volcanoes.