Which two countries share the longest land border in South America?

Which country borders Brazil, Argentina, and Bolivia?

Colombia shares a border with Venezuela, Ecuador, Peru, Brazil, and which other country?

Brazil shares a border with every country in South America except for which two?

Chile and Argentina share one of the longest land borders in the world. Approximately how long is this border?

Which two countries share the border that runs along Lake Titicaca?

Suriname shares borders with Guyana, French Guiana, and which other country?

Venezuela shares a land border with Colombia, Brazil, and which other country?

The Triple Frontier is a famous meeting point where Brazil, Argentina, and which third country converge?

Ecuador shares borders with Colombia and which other country?