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The Plateau Continent Africa
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Landforms and Resources
Shape and landforms are result of location in Pangea. Other continents moved a great amount while present day Africa moved very little
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True size of Africa
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Vast Plateau Med Nile Majority of land lies on a plateau that stretches across the continent. The majority of land is 1000 ft. above sea level Basins: depressions in the ground Nile River: world’s longest river, 4,000 mi. long, flows N to Egypt
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Victoria Falls: One of the 7 Wonders of the World
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Distinctive African Landforms
Rift Valleys: continental plates pull apart, form huge cracks, land sinks Stretch 4,000 mi. Lakes form at the bottom Mount Kenya and Mount Kilimanjaro (Africa’s Highest Mount.) are both volcanoes Escarpment: steep slope with a flat plateau
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Resources Minerals Gold, platinum, chromium, cobalt, copper & diamonds
Because of colonialism, Africa hasn’t developed the infrastructure needed to make a profit Diamond Miners
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Oil Libya, Angola, Nigeria and Algeria are leading producers
American oil companies pay fee to Angola which turns and uses money to fund ongoing civil war.
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Diversity of Resources
Coffee Most profitable after oil Lumber Agriculture Single most important econ. activity 60% of Africans earn their living in farming
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Climate and Vegetation
Warm Continent Sahara: largest desert in world. –Temp. H: 136.4° (day), below freezing at night Aquifers: underground stores of H²O. Known as an oasis when they reach surface Tropical weather all year long 90% of land lies between tropic of Cancer and tropic of Capricorn Sahara
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Sunshine and Rainfall Rain forest receives most rain (on or near Equator) W coast receives a great deal Moderate area (N & S tips) only receives rain in winter
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Grassy Continent Tropical Grasslands cover most of Africa
Serengeti Plain: grassland in N. Tanzania Perfect for animals to graze
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Serengeti
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Rain Forest Sits along Equator area of Congo basin
Wide variety of plant & animals Most live in the canopy (near the tops of the trees) Farmers using slash and burn have cut down ½ already, now endangered
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Human Environment Interaction
Nigeria Sixth leading oil producer, most shipped to U.S. Oil spills (4,000 in 40 yrs) Oil pipeline explosions, sabotage by rebels Fires lead to acid rain
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Desertification of Sahel
Sahel: shore of the desert Desertification: expansion of dry conditions into moist areas that are near desert Normal, natural process that is sped up because of grazing Causes include: overgrazing, farming, pop. increase
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Controlling the Nile 1st Aswan Dam completed in 1902 Aswan High Dam
4 miles up river form 1st Dam Creates Lake Nasser (artificial), Egypt shares with Sudan Increased farmable land by 50% Natural renewal of silt (sediment), which occurs during floods, gone Expensive fertilizers now used Mosquitoes increased
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