Explanation

The Andes Mountains are the longest continental mountain range in the world, stretching approximately 7,000 km along the western coast of South America — from Venezuela in the north to Chile and Argentina in the south. The Andes pass through a total of seven countries: Venezuela, Colombia, Ecuador, Peru, Bolivia, Chile, and Argentina.

Bolivia — The Andes run prominently through western Bolivia, forming the Altiplano (high plateau), one of the world’s highest and largest plateaus. ✅ Andes pass through Bolivia.

Brazil — Brazil is located to the east of the Andes and is geographically separated from the mountain range. The terrain of Brazil is dominated by the Amazon Basin and the Brazilian Highlands, not the Andes. ❌ Andes do not pass through Brazil.

Colombia — The Andes enter Colombia from the south and split into three distinct branches — the Western, Central, and Eastern Cordilleras — making Colombia one of the most geographically significant Andean nations. ✅ Andes pass through Colombia.

Ecuador — The Andes run centrally through Ecuador, dividing the country into the coastal region, the Andean highlands, and the Amazon basin. ✅ Andes pass through Ecuador.

Paraguay — Paraguay lies to the east of the Andes on the Paraguayan Plateau and has no connection to the Andes mountain range. ❌ Andes do not pass through Paraguay.

Venezuela — The northernmost tip of the Andes enters western Venezuela, making it the northernmost Andean country. ✅ Andes pass through Venezuela.

Therefore, the Andes pass through Bolivia, Colombia, Ecuador, and Venezuela — four out of six listed countries.