The main distinguishing feature of desert climates is their low levels of precipitation, typically receiving less than 250 millimeters (10 inches) of rain annually. This lack of moisture results in arid conditions and extreme temperature variations between day and night. Deserts often feature unique landscapes, including dunes, rocky plateaus, and sparse vegetation. Adapted flora and fauna find ways to survive in these challenging environments, showcasing remarkable adaptations for water conservation and temperature regulation.