Panama is responsible for the largest number of exports (by dollar value) from Central America. In 2013, Panama had outgoing shipments valued at over $14.5B USD, accounting for between 25-30% of Central American exported products. Although this doesn't quite answer your question as far as the actual number of exported items, it's safe to assume that the quantity of exports is in line with this statistic and Panama also exports the largest number of goods.
Costa Rica qualifies as such. It exported 1.91 million tonnes of bananas during 2011. It is the third largest exporter of bananas in the world.
Chile!!
Traditionally, Central America qualified as such; the term banana republic was coined there, after all. Nowadays however, major exporters of bananas in the region are located in South America:Value of banana exports, 2011 in millions of USD:Ecuador: 2,246.3 (largest exporter in the world)Colombia: 775.2Costa Rica: 719.4Guatemala: 435.4Honduras: 397.7Dominican Republic: 269.6Panama: 86.3Mexico: 75.8
The United States of America
Yes.
Nicaragua is the largest republic of central america
Brazil is the largest exporter of copper
Mestizo is the largest ethnic group in Central America (a racial blend of Native and European). Guatemalan is the largest nationality in Central America.
India is the largest exporter of lemons.
Nicaragua has the largest land area in Central America.
The largest lake in Central America is Lake Nicaragua.
Lake Nicaragua is the largest inland body of water in Central America.
Actually and surprisingly, it's Ireland. Irish comedian, Dara O'Briain was on QI, hosted by Stephen Fry, who asked this very question. Dara was gobsmacked when Fry told him that Ireland was the world's largest exporter of bananas, and joked why weren't we told this at school. Fry went on to explain that Ireland had bought the entire global crop, starting with Guatemala and began exporting Fyffes bananas.