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.
Jamaica is a country with a small population which is located in the continent/region of North America. Countries near Jamaica include Cayman Islands, Cuba, Haiti and Turks and Caicos Islands. Its biggest cities and towns include Kingston, Spanish Town, Portmore and Montego Bay.