a very dry area receiving less than 10 inches of rain per year
land that can be cultivated
Sahel (sa HEL)
transition area in western and central Africa directly south of the Sahara Desert. It is semi-arid grassland with sparse vegetation.
tropical grassland with scattered trees with wet/dry seasons
cliff or steep slope separating two nearly flat land surfaces
a large steep waterfall
an accumulation of salt on the floor of a desert basin
a channel cut through the desert by water; a dry river bed
long period without rainfall
extreme scarcity of food
an area made fertile by a source of fresh water in an otherwise arid region
livestock herders who migrate seasonally in search of pasture, food, or water
a group of people that have similar racial, cultural, and language backgrounds
farming in which crops are grown for food (not for sale)
the point at which two streams or rivers meet and flow together
artificial lake where water is collected
belief that plants and animals are inhabited by mostly evil spirits
the permanent resources serving society's needs, including roads, sewers, schools, hospitals, railways, utilities, communication networks, etc.
native to an area; the original people of a region
transformation of habitable land into desert
a person who is forced to flee their country because of war, famine, or persecution
Gross domestic product (GDP)
total value of all goods and services produced by a country in a given year
Per capita GDP
average income for each person (calculated by dividing the GDP by the population)
the ability to read and write
the process by which soil or rock is worn away by the action of wind, water, or ice
original non-Arab peoples of northwest Africa
main food in the diet of a region
5 countries of North Africa west of Egypt: Libya, Tunisia, Algeria, Morocco, and Mauritania
process to remove salt and other minerals from water
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