Indicate the occupation of the desert population.

Desert: sheep, goat and camel breeding, irrigated agriculture and gardening only in oases (cotton, wheat, barley, sugarcane, olive tree, date palm).
Semi-desert: grazing livestock, oasis agriculture is developed on irrigated lands.
Camels live in deserts (one-humped-dromedar in Africa, two-humped-Bactrian – in Asia).

The desert was and remains an extreme natural environment for human life, although it was in the desert that ancient civilizations originated and existed: Egypt, Mesopotamia, Khorezm, Assyria, etc. Life usually arose near a well, river or other water source. This is how oases appeared, the first “islands” of life created by human labor. Life in oases and occupations of the population differed significantly from the conditions of the desert proper, where people are doomed to eternal roaming under the scorching sun and dusty storms in search of water. Sheep and camel breeding has become a traditional pastime for nomads. Irrigated agriculture and horticulture developed only in oases, where plants such as cotton, wheat, barley, sugarcane, olive trees, date palm trees, and others have long been cultivated. The rapid influx of population into large oases led to the formation of the first cities.