Valley vs Annaba

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A valley is an elongated low area often running between hills or mountains which will typically contain a river or stream running from one end to the other. Most valleys are formed by erosion of the land surface by rivers or streams over a very long period of time. Some valleys are formed through erosion by glacial ice. These glaciers may remain present in valleys in high mountain or polar areas. At lower latitudes and latitudes, these glacially-formed valleys may have been created or enlarged during ice ages but now be ice-free and occupied by streams or rivers.

In desert areas, valleys may be entirely dry or carry a watercourse only rarely. In areas of limestone bedrock, dry valleys may also result from drainage taking place underground rather than at the surface. Rift valleys arise principally from earth movements, rather than erosion. Many different types of valley are described by geographers, using terms that may be global in use or else applied only locally.

Source: Wikipedia

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Annaba (Arabic: عنّابة‎, lit "Place of the Jujubes"; Berber languages: Aânavaen), formerly known as Bona and Bône, is a seaport city in the northeastern corner of Algeria, close to Tunisia. Annaba is close to the small Seybouse River, and it is in the Annaba Province. With a population of about 464,740 (2019) and 1,000,000 for the metropole, Annaba is the 3rd largest city in Algeria. It is the leading industrial center in Algeria.

Annaba is a coastal city that underwent significant growth during the 20th Century. Annaba has a metropolitan area with a higher population density than the other metropolitan areas of the Algerian coastline, such as Oran and Algiers. Much of eastern and southern Algeria uses the services, equipment, and infrastructure of Annaba. Economically, it is the centre for various economic activities, such as industry, transportation, finance, and tourism.

Source: Wikipedia