A large and continuous group of mountain ranges that have a shared geological origin.

An extensive high plain, especially in South America, situated between mountain ranges.

An area of flat or gently rolling grassland, typically found in South America.

A coastal area where freshwater from rivers meets and mixes with saltwater from the ocean.

The height of an object or point in relation to sea level or ground level.

To separate or set apart from others.

A highly contagious disease that caused severe illness and death, characterized by fever and a distinctive rash.

A form of irregular warfare where small groups use hit-and-run tactics against a larger traditional army.

A corporation that operates in multiple countries, often having facilities and offices in several regions of the world.

A sudden, often violent overthrow of an existing government by a small group.

A system of organizing people or things into ranks or levels of importance.

A type of settlement in Peru or the Andes, often referring to a community or group of people who traditionally live in rural areas.

The strong effect or influence that one thing can have on another.

Relating to the present time or recent times, especially in art, culture, or society.