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The landforms of Earth are generally divided into physiographic regions, consisting of physiographic provinces, which in turn consist of physiographic sections, [1] [2] [3] though some others use different terminology, such as realms, regions and subregions. [4]
Africa has 30% of the remaining mineral resources in the world. 57% of Africa's export earnings comes from hydrocarbons. From 1980 to 2012, proven oil reserves in Africa grew by 150%. [4] Ore resources in Africa are abundant [citation needed] while other continents are beginning to face depletion of resources.
The Hudson Valley (also known as the Hudson River Valley) comprises the valley of the Hudson River and its adjacent communities in the U.S. state of New York. The region stretches from the Capital District including Albany and Troy south to Yonkers in Westchester County , bordering New York City .
Satellite view of Africa 1916 physical map of Africa. The average elevation of the continent approximates closely to 600 m (2,000 ft) above sea level, roughly near to the mean elevation of both North and South America, but considerably less than that of Asia, 950 m (3,120 ft). In contrast with other continents, it is marked by the comparatively ...
Africa's largest protected area, located in the Saharan desert of Ténéré, consists of the volcanic rock mass of Aïr and a small isolated Sahelian pocket with unique flora and fauna. [29] The natural reserve was placed on UNESCO's List of World Heritage in Danger in 1992, due to the increase in military conflicts and the hostage-taking of ...
Africa's population is the youngest among all the continents; [10] [11] the median age in 2012 was 19.7, when the worldwide median age was 30.4. [12] Based on 2024 projections, Africa's population will reach 3.8 billion people by 2099. [13] Africa is the least wealthy inhabited continent per capita and second-least wealthy by total wealth ...
The eastern head of the Ridge and Valley region is marked by the Great Appalachian Valley, which lies just west of the Blue Ridge. The western side of the Ridge and Valley region is marked by steep escarpments such as the Allegheny Front, the Cumberland Mountains, and Walden Ridge. The Valley and Ridge is located on the west side of the Blue ...