| A | B |
|---|
| Pampas | the treeless grassland of Argentina and Uruguay |
| Estuary | an area where river currents and the ocean tide meet |
| Altitude | the height above sea level |
| tierra templada | the most densely populated climate zone |
| El Niño | a weather event that occurs about every three years and causes unusual weather |
| Cordilleras | a region of parallel mountain chains |
| Isolated | to make separate from others |
| Altiplano | the high plains |
| Pantanal | one of the world’s largest wetlands located along the Paraguay River |
| Lake Titicaca | The largest lake in the Andean region |
