chapter 18 physical geography of africa the plateau ??ppt fileweb view2015-02-06chapter 18 physical...

Download Chapter 18 Physical Geography of Africa The Plateau  ??PPT fileWeb view2015-02-06Chapter 18 Physical Geography of Africa The Plateau Continent Objective: Analyze key features of Africa’s physical geography, climate/vegetation,  human-environment interaction Chapter 18 Section 1 Landforms  Resources

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  • Chapter 18Physical Geography of AfricaThe Plateau Continent

    Objective: Analyze key features of Africas physical geography, climate/vegetation, & human-environment interaction

  • Chapter 18 Section 1Landforms & Resources

    Vocabulary: Basin, Nile River, Rift Valley, Mount Kilimanjaro, & Escarpment

    Objective: Describe the distinctive African landforms of rift valleys, lakes, mountains, & escarpments

  • A Vast Plateau

    Africa moved very little during continental driftPlateaus are Africas most prominent physical featuresSeveral basins lie throughout the plateausThe Nile River is the longest river in the world covering more than 4,000 milesAfrica contains waterfalls, rapids, & gorges

  • Distinctive African Landforms

    As continental plates pulled apart, it formed Rift Valleys in AfricaLakes are formed at the bottom of the rift valleysLake Tanganyika is the longest freshwater lake in the world located within the rift valleyMount Kilimanjaro is Africas highest mountain

  • Africas Wealth of Resources

    Africa has a large amount of resources but lacks the industrial base & money to develop themAfrica has large quantities of gold, platinum, chromium, cobalt, copper, phosphates, diamonds, & other mineralsDue to European colonial rule, African nations have been slow to develop the infrastructure & industries to turn the resources into valuable productsLibya, Nigeria, & Algeria have oil reserves

  • Diversity of Resources

    Coffee is the most profitable commodity in AfricaThey grow 20% of the worlds supplyLumber is another important commodity in AfricaOther major commodities include sugar, palm oil, & cocoa66% of Africans earn their living from farming

  • Chapter 18 Section 2Climate & Vegetation

    Vocabulary: Sahara, Aquifer, Oasis, Serengeti Plain, & Canopy

    Objective: Explain the distribution of warm climates in Africa

  • A Warm Continent

    The Sahara is the largest desert in the world, that stretches 3,000 miles across the continentTemperatures can rise as high as 134 degrees during the day but freezing at nightTravelers rely on camels who can go up to 17 days without waterUnderground water called aquifers are located below the desertOasis support vegetation & wildlife

  • Sunshine & Rainfall

    Rainfall in Africa is often a matter of extremes; some areas get too much rain, while other parts receive too littleIt also varies year to year & season to seasonCentral Africa receives the most precipitation, as rain falls throughout the yearIn the Sahara may not see rain for years

  • A Grassy Continent

    Africas vegetation consists of grasslands, rain forests, & a wide variety of other plant lifeThe Serengeti Plain has dry climate & hard soil that prevents the growth of trees & many cropsHowever it has a vast quantity of grass

  • Africas Extremes

    The major rain forest of Africa is on the Congo BasinThe massive number of plants, leaves, & trees block out much of the sunlightMost animals in the rain forest live in the canopy (uppermost layer of branches)Farmers use slash & burn to clear the land

  • Chapter 18 Section 3Human-Environment Interaction

    Objective: Niger Delta, Sahel, Desertification, Aswan High Dam, & Silt

    Objective: Explain the harm caused by oil operations in Nigeria

  • Desertification of the Sahel

    Sahel: narrow band of dry grassland that runs along the SaharaDesertification is an expansion of dry conditions into moist areas that are next to desertsHuman causes of desertification include overgrazing, farming, irrigation, & overpopulationsDesertification is destroying land & is difficult to slow down

  • Harming the Environment in Nigeria

    Oil accounts for 80% of Nigerias incomeNigerias government owed millions of dollars in loans to drill more oilMismanagement, poor planning, corruption, & decline in oil prices has left Nigeria poor then before the oil boom4,000 oil spills have occurred & very little clean up is doneNigeria has started economic reforms & trying to find ways for Nigeria to benefit again

  • Controlling the Nile

    Egypt has faced issues controlling the floodwaters of the Nile RiverThey build the Aswan High Dam that keeps the water year round & releases its for farmersThe dam has increased farmable land by 50%However it causes issues with no deposits of silt & less fertile soil

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