1. How have the rifts in the Great Rift Valley been formed? 2. Africa is ____ times the size of the __________. About ____ million years ago, Africa was the center of the Earth - PowerPoint PPT Presentation

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1. How have the rifts in the Great Rift Valley been formed? 2. Africa is ____ times the size of the __________. About ____ million years ago, Africa was the center of the Earth

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GEOGRAPHY OF SUB-SAHARAN AFRICA Africa 53 countries 900 million people 2nd largest continent Madagascar, West Africa, East and Equatorial Africa, ... – PowerPoint PPT presentation

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Title: 1. How have the rifts in the Great Rift Valley been formed? 2. Africa is ____ times the size of the __________. About ____ million years ago, Africa was the center of the Earth


1
1. How have the rifts in the Great Rift Valley
been formed?2. Africa is ____ times the size
of the __________. About ____ million years
ago, Africa was the center of the Earths only
continent, called __________.
2
GEOGRAPHY OF SUB-SAHARAN AFRICA
3
Africa
  • 53 countries
  • 900 million people
  • 2nd largest continent
  • Madagascar, West Africa, East and Equatorial
    Africa, and Southern Africa

4
Desert
  • Less than 10 20 of rain a year
  • 3 Deserts in Africa
  • Sahara
  • Kalahari
  • Namib

5
A Vast Plateau
  • Most of Africa is made up of lowlands, found
    along the coastal areas, riverbanks, and plateaus
  • High areas Mt. Kilimanjaro and Mt. Kenya
    inactive volcanoes
  • Low lands (basins) Congo Basin

6
Congo Basin
  • Heart of Africa
  • Bowl-shaped dip in the land
  • Dense rain forests
  • Swamps
  • Winding rivers

7
Great Rift Valley
  • North-south cracks in the land narrow valley
    with steep sides
  • These often form escarpments
  • Cliff hill escarpment mountain
  • 4500 miles from Syria in the Middle East to
    Mozambique
  • Lakes in between these
  • Formed because Africa is pulling apart (Pangaea)

8
Pangaea
9
Rivers and Escarpments
  • Most of Africans live along the four major rivers
  • Nile
  • Zaire
  • Zambezi
  • Niger
  • Rivers flow from vast plateau and drop over
    escarpments dangerous and make few rivers
    navigable
  • Why would it be difficult to transport goods
    across some African rivers?

10
Sahel, Savanna, and Rain Forest
sahel
  • South of Sahara are dry lands called Sahel.
    Arabic for border or shore could turn into
    a desert
  • Two zones south of Sahel are rain forest and
    savanna
  • Savanna is a broad grassland with scattered
    trees. Major farming area shared with wild
    animals of Africa.
  • Rainforests have rain almost everyday,
    temperatures stay high, and it is located mainly
    in West Africa Congo Basin

11
Sahel
12
Savanna
13
Rain Forest
14
Landlocked Nations
  • No access to seas or oceans
  • Surrounded on all sides by borders of other
    nations
  • Why would this cause problems?
  • Name some landlocked countries in Africa.

15
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