"Arid" describes a climate or environment that is extremely dry and lacks sufficient moisture. This term is often used to characterize regions like deserts, where rainfall is scarce, making it difficult for plants and animals to thrive. The Sahara Desert is a prime example of an arid area, where temperatures can soar and vegetation is limited. In arid regions, water conservation becomes crucial for survival. Many plants, such as cacti, have adapted to these conditions by developing deep roots and storing water. Animals, too, have unique adaptations, like the kangaroo rat, which can survive without drinking water by extracting moisture from its food.