South America 

✅ Answer: B) Chile

Explanation: Brazil shares borders with 10 of the 12 South American countries. Only Chile and Ecuador do not share a border with Brazil. Chile is separated from Brazil by Argentina and Bolivia. 

✅ Answer: C) Amazon
Explanation: The Amazon River is the second-longest river in the world (after the Nile) and flows primarily through Peru and Brazil. It carries more water than any other river, making it the largest by discharge volume.

✅ Answer: C) Brazil

Explanation: The Andes stretch along the western edge of South America and do not pass through Brazil. They extend through 7 countries: Venezuela, Colombia, Ecuador, Peru, Bolivia, Chile, and Argentina. 

✅ Answer: C) Paraguay
Explanation: Paraguay and Bolivia are landlocked countries in South America, meaning they have no access to the sea. Paraguay relies on the Paraguay and Paraná Rivers for water transport.

✅ Answer: B) Atacama Desert
Explanation: The Atacama Desert is one of the driest places on Earth. It has areas where no recorded rainfall has ever been noted. It is rich in minerals, especially copper and lithium.

✅ Answer: D) Orinoco
Explanation: The Orinoco River flows for over 2,000 km, mainly in Venezuela, and is important for hydroelectric power and biodiversity.

✅ Answer: C) South America

Explanation: The Amazon Rainforest is the largest tropical rainforest in the world, spanning 9 countries, with the largest portion in Brazil. It plays a key role in absorbing carbon dioxide and producing oxygen. 

✅ Answer: C) Argentina

Explanation: Ushuaia in Tierra del Fuego, Argentina, is the southernmost city in the world, located near the Beagle Channel and a gateway to Antarctica. 

✅ Answer: A) Bolivia
Explanation: La Paz is the administrative capital where the government functions, while Sucre is the constitutional capital of Bolivia.

✅ Answer: C) Altiplano

Explanation: The Altiplano (meaning "high plain") is a vast plateau at high altitude. It is the second-largest plateau in the world after the Tibetan Plateau and supports major cities like La Paz. 

✅ Answer: A) Brazil
Explanation: The Guiana Highlands extend across Venezuela, Guyana, Suriname, French Guiana, and northern Brazil. They are rich in minerals and home to Angel Falls, the world's highest waterfall.

✅ Answer: C) Argentina
Explanation: The Pampas are fertile South American lowlands in Argentina and Uruguay, ideal for agriculture and cattle grazing.

✅ Answer: B) Tierra del Fuego

Explanation: The Strait of Magellan is a natural sea route separating the southern tip of South America from Tierra del Fuego, offering a navigable passage between the Atlantic and Pacific Oceans. 

✅ Answer: B) Ecuador
Explanation: The Galápagos Islands are part of Ecuador. These volcanic islands are famous for biodiversity and influenced Charles Darwin’s theory of evolution.

✅ Answer: A) Paramaribo
Explanation: Paramaribo is the capital of Suriname, a small country in the northeastern part of South America, bordered by Guyana, French Guiana, and Brazil.

✅ Answer: B) Aconcagua
Explanation: Mount Aconcagua in Argentina is the highest mountain in South America and the highest outside of Asia, reaching about 6,962 meters.

✅ Answer: C) Paraná
Explanation: The Paraná River is the second-longest river in South America, and it flows through Brazil, Paraguay, and Argentina.

✅ Answer: D) Pacific Ocean
Explanation: The Pacific Ocean borders the western coast of South America, including countries like Chile, Peru, and Ecuador.

✅ Answer: C) La Paz
Explanation: La Paz, Bolivia is the highest capital city in the world, located at an altitude of about 3,650 meters (11,975 ft) above sea level.

✅ Answer: D) Brazil
Explanation: Brazil is the largest country in South America, covering almost half of the continent's area and the fifth-largest in the world.