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The Geography of Africa

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The Geography of Africa 2.7.12 Main Ideas Fertile soil along the Nile River encouraged the rise of great civilizations (ex. Egypt) Many geographic features in Africa ... – PowerPoint PPT presentation

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Title: The Geography of Africa


1
The Geography of Africa
  • 2.7.12

2
(No Transcript)
3
Main Ideas
  • Fertile soil along the Nile River encouraged the
    rise of great civilizations (ex. Egypt)
  • Many geographic features in Africa have prevented
    contact, trade unity among peoples
  • Many of these same features limit European
    knowledge of Africa the Dark Continent

4
Physical Geography
  • PHYSICAL FEATURES
  • Sahara Desert
  • smooth coastline
  • lack of navigable rivers
  • Great Rift Valley
  • high plateau
  • RESULT
  • Groups are kept separate
  • 800 different languages are spoken in modern
    Africa

5
More Physical Features
  • Lake Victoria
  • Lake Tanganyika

6
Diversity leads to Imperialism
  • Raw materials and resources lead to European
    interest in Africa
  • Africas geographical divisions prevents the
    Africans from cooperating to resist

7
Interesting Statistics
  • 2nd largest continent- - 11,700,000 square miles!
  • Thats 20.2 of the earth
  • And 3x the size of the USA
  • 1,022,234,000 people
  • 55 countries

8
Topography
  • Deserts
  • 40 of the land surface of Africa
  • slows cultural diffusion - does not totally
    prevent it
  • Sahara -- North Africa
  • 1/3 of the continent ( to the USA!!)
  • majority is rock and gravel
  • Kalahari--Southwest Africa

9
True desert spreads into semi-arid regions
10
Desertification - Causes
  • Farmers use semi-arid land next to desert -
    yields poor crop
  • Overgrazing by cattle and goats
  • Overcutting of trees for firewood
  • With no grass or tree roots, the topsoil blows
    away, the desert advances

11
Solutions
  • Crop rotation
  • Terracing to prevent soil from washing away
  • Tree belts to stop erosion and hold soil in place

12
Mountains
  • East Africa-
  • caused by volcanic activity
  • section of the land sank - causing the Great Rift
    Valley
  • Atlas (NW)
  • Drakensberg (SE)
  • Ethiopian Highlands
  • Famous peaks - Mt. Kenya Mt. Kilimanjaro

13
Rivers
  • Depth varies depending on the season
  • Plateaus prevent easy navigation
  • Therefore, the interior of Africa remained
    largely unexplored in the past

14
Nile River
  • 4,180 miles long (worlds longest!!)
  • flows NORTH
  • Source - - Lake Victoria
  • Delta - - Egypt
  • Floods annually
  • One of the most densely populated region in Africa

15
Congo, Niger Zambezi Rivers
  • Waterfalls and rapids prevent easy navigation
  • Congo - 3000 miles long
  • Niger - ancient civilizations flourished here
  • Zambezi - Victoria Falls, used for hydro-electric
    power

16
Coastline
  • Smooth
  • Few natural harbors - hard to land ships

17
Climate - determined by rainfall, latitude and
elevation
  • Savanna - 40, safari!!
  • Tropical Rainforest - 8,
  • Desert - 40
  • Mediterranean - 12, good farm land
  • About 85 of the land is not suited to farming

18
Natural Resources
  • Farming
  • peanuts, cotton, cocoa, coffee
  • Minerals
  • diamonds, gold, copper, cobalt
  • Water
  • hydroelectric power

19
Features to Remember
  • I watch CNN on TV in the AM.
  • Rivers
  • C CONGO
  • N NIGER
  • N NILE

20
Lakes
  • Lake VICTORIA
  • Lake TANGANYIKA

21
Mountains
  • Atlas Mountains
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