A core is your old worn out (yet still rebuildable) engine or part that is required as a trade in when you purchase a remanufactured or sometimes a new one. An acceptable core or rebuildable core is one that is not broken, damaged beyond repair, or so severely cracked that is can no longer be machined back to proper working condition.
Jamaica is part of the continent of North America. North America includes Canada, the United States, Mexico, and the islands of the Caribbean Sea.
Geography. Jamaica is an island in the West Indies, 90 mi (145 km) south of Cuba and 100 mi (161 km) west of Haiti. It is a little smaller than Connecticut. The island is made up of coastal lowlands, a limestone plateau, and the Blue Mountains, a group of volcanic hills, in the east.