The term for a large area of flat land is "plain." Plains are characterized by their expansive, level terrains and are often found in various climatic regions across the globe. These geographical features can be beneficial for agriculture due to their fertile soil and ease of cultivation. Plains can also serve as crucial habitats for diverse ecosystems and wildlife. Examples include the Great Plains in North America and the Pampas in South America. Plains can be contrasted with hilly or mountainous terrains, which present different challenges for human settlement and agriculture.