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Africa

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Africa s Major Climate Zones and Geography West Africa The vast majority of West Africa is savannah and semiarid sahel West African droughts are the norm Expansion ... – PowerPoint PPT presentation

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Title: Africa


1
Africas Major Climate Zones and Geography
2
West Africa
  • The vast majority of West Africa is savannah and
    semiarid sahel
  • West African droughts are the norm
  • Expansion of the Sahara, called desertification,
    has affected people living in West Africa for the
    past 3000 years.
  • Access to Atlantic Ocean and navigable rivers
    like the Niger River encouraged trade

3
Central Africa
  • Main feature is the Congo Rainforest, the worlds
    second largest rainforest.
  • Tropical rainforest, no regular dry season
  • Congo River, important to trade and
    transportation

4
Southern Africa
  • A lot of variation in climate throughout the
    region
  • Mild coastal climate
  • Semiarid areas
  • Kalahari Desert
  • Drakensberg Mountains
  • Victoria Falls
  • Zambezi River
  • Too difficult to navigate to be a useful trading
    route

5
North Africa
  • Mediterranean mild climate on northern coast
  • Sahara Desert Desertification
  • Atlas Mountains
  • Nile River and Nile Delta

6
East Africa
  • Great Rift Valley
  • Lake Victoria
  • Mount Kilimanjaro
  • Savannahs
  • Some areas receive a lot of rain, other areas get
    almost no rain.
  • Moderate temperatures
  • Unreliable rains affect agriculture

7
Cradle of Humanity
  • Archeologists call East Africa the cradle of
    humanity.
  • Has the largest number of hominid fossils
  • Olduvai Gorge
  • Great Rift Valley

8
Mitochondrial Eve
  • Theory claims that all living humans are
    descended from humans living in Eastern Africa
    150,000 to 200,000 years ago
  • Assumes that mitochondrial DNA changes at a
    predictable rate over time.
  • Supported by the fact that modern human DNA is
    very different from Neanderthal and other
    pre-humans.

9
Replacement Model
  • Suggests that our ancestors from Eastern Africa
    wiped out the rest of the human-like species in
    the world.
  • DNA most supports this theory.

10
Assimilation Model
  • Suggests that humans from Eastern Africa merged
    with the other human-like populations around the
    world
  • Most supported by archeological evidence
    (artifacts)

11
Multi-regionalist Theory
  • Opposes the Mitochondrial Eve theory entirely.
  • Wolpoff at the University of Michigan
  • Supported by the similarity between pre-human and
    modern humans in different regions.
  • Not supported by DNA evidence

12
TAKE A STAND
  • Which of the human origins theories would you
    support?
  • Remember to include 2 facts, 1 piece of data, at
    least 1 CDV, and the opposing opinion.

13
Climate and Geography
  • Group artists
  • Responsible for showing climate and geography on
    the map.
  • Responsible for explaining how climate and
    geography affected the history of the region.

14
History and Kingdoms
  • The group fact checkers
  • Responsible for creating a timeline of important
    events.
  • Responsible for describing the rise and decline
    of kingdoms

15
Culture and Religion
  • Responsible for making sure that a diverse
    history is represented.
  • Responsible for describing the regions cultures
  • Responsible for explaining affect major religions
    had the region.

16
Economy and Agriculture
  • Responsible for getting group materials and
    putting them back at the end of group time.
  • Responsible for identifying important resources
    and how they affected a region.
  • Responsible for describing the regions
    relationship to agriculture.
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