NicaraguaNicaragua (ˌnɪkəˈrɑːɡwə,-ˈræɡ-,-gjuə; nikaˈɾaɣwa), officially the Republic of Nicaragua (), is the largest country in Central America, bordered by Honduras to the north, the Caribbean to the east, Costa Rica to the south, and the Pacific Ocean to the west. Managua is the country's capital and largest city. it was estimated to be the third largest city in Central America. Nicaragua's multiethnic population of six million includes people of mestizo, Indigenous, European and African heritage. The main language is Spanish.
Costa RicaCosta Rica (ˌkɒstə_ˈriːkə, ˌkoʊstə-; ˈkosta ˈrika; literally "Rich Coast"), officially the Republic of Costa Rica (República de Costa Rica), is a country in the Central American region of North America. Costa Rica is bordered by Nicaragua to the north, the Caribbean Sea to the northeast, Panama to the southeast, and the Pacific Ocean to the southwest, as well as maritime border with Ecuador to the south of Cocos Island. It has a population of around five million in a land area of .
Plate tectonicsPlate tectonics (from the tectonicus, from the τεκτονικός) is the scientific theory that Earth's lithosphere comprises a number of large tectonic plates which have been slowly moving since about 3.4 billion years ago. The model builds on the concept of continental drift, an idea developed during the first decades of the 20th century. Plate tectonics came to be accepted by geoscientists after seafloor spreading was validated in the mid-to-late 1960s.
