1. A geographic region characterized by extremely low precipitation and limited vegetation, typically receiving less than 10 inches (250mm) of rainfall annually
The Sahara Desert is one of the largest arid zones in the world.
O Deserto do Saara é uma das maiores zonas áridas do mundo.
2. An ecological area with sparse plant and animal life due to severe water scarcity
Agricultural development in arid zones requires sophisticated irrigation systems.
O desenvolvimento agrícola em zonas áridas requer sistemas de irrigação sofisticados.