Plains are extensive areas of flat or gently rolling land, often characterized by fertile soil and a lack of significant elevation changes. They are typically found in regions with a temperate climate and are crucial for agriculture, supporting crops and livestock due to their rich nutrients. These vast landscapes can be found on every continent and are home to diverse ecosystems. The Great Plains in North America, for example, are known for their grasslands and are vital for both wildlife and farming, making them an essential part of the environment and economy.