Negev, Atacama, and Namib are all types off what?
Namib inland to the foot of the Great Escarpment. Annual precipitation ranges from in the most arid regions to at the escarpment, making the Namib the only true desert in southern Africa. Having endured arid or semi-arid conditions for roughly 55–80 million years, the Namib may be the oldest desert in the world and contains some of the world's driest regions, with only western South America's Atacama Desert to challenge it for age and aridity benchmarks. The desert geology consists of sand seas near the coast, while gravel plains and scattered mountain outcrops occur further inland. The sand dunes, some of
Negev vicinity of Eilat in the southernmost Negev. Nomadic life in the Negev dates back at least 4,000 years and perhaps as much as 7,000 years. The first urbanized settlements were established by a combination of Canaanite, Amalekite, Amorite, Nabataean and Edomite groups circa 2000 BC. Pharaonic Egypt is credited with introducing copper mining and smelting in both the Negev and the Sinai between 1400 and 1300 BC. In the Bible, the term Negev only relates to the northern, semiarid part of what we call Negev today, located in the general area of the Arad-Beersheba Valley. According to the Book of