Practical Geology S01 E07 Desert Fans, Washes, Salt Lakes, and Dunes

Steppes and deserts make up almost a third of Earth’s land surface and are an ideal place to practice geology due to the distinctive landforms, often unobstructed by vegetation. Explore alluvial fans, washes, playa lakes, dunes, and other features typical of arid regions. Also ask why steppes and deserts are so dry. What combination of surface, ocean, and atmospheric conditions produce them?