Crassulacean Acid Metabolism (CAM) is a photosynthetic process used by some plants to conserve water in arid environments. During the night, these plants open their stomata to take in carbon dioxide, which is then stored as organic acids. This adaptation helps reduce water loss, as stomata are closed during the hot daytime. In the daytime, the stored acids are converted back into carbon dioxide for photosynthesis, allowing the plant to produce energy while minimizing water evaporation. CAM is commonly found in succulents like cacti and aloe vera, making them well-suited for dry habitats.