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TRANSCRIPT
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North Africa, Southwest Asia and Central Asia
Chapter 17
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Intro 1
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Chapter Objectives
Describe the major landforms and natural resources of North
Africa, Southwest Asia, and Central Asia.
Discuss the climate and vegetation of North Africa,
Southwest Asia, and Central Asia.
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The Land
Section 1
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Section Objectives
Identify which land and water features dominate the
region.
Discuss how the region’s major rivers are important to its people.
Explain why much of the world is economically dependent on the region.
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Terms to Know
alluvial soil
wadi
kum
phosphate
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A Geographic View
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Geographic LIteracy
The Nile River, flowing through northeastern Africa to the
Mediterranean Sea, keeps Egypt from being entirely desert. For
centuries, the Nile flooded its banks every summer, covering
nearby fields with fertile soil. Dams, especially the Aswan High
Dam, now control Nile flooding, drastically reducing sediment
deposits and fertility.
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Seas and Peninsulas
North Africa, Southwest Asia, and Central Asia feature
numerous seas and peninsulas.
These include the Mediterranean, Red, and Black Seas as well as the Arabian and Sinai Peninsulas.
The Dead Sea, the Caspian Sea, and the Aral Sea are actually landlocked bodies of salt water.
The Aral Sea, which began to dry up when the Soviet Union diverted river source waters for irrigation, seems to be coming back.
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Rivers
Major Rivers: Cradles of Civilization
The Nile River Valley provides water and a lush, fertile
living space for about 90 percent of Egypt’s population.
The Tigris and Euphrates Rivers help irrigate farms
throughout Syria, Turkey, and Iraq.
Streambeds Runoff from infrequent, violent rainstorms
creates temporary streams in arid North Africa and
Southwest Asia.
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Rivers
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Plains, Plateaus and Mountains
Coastal Plains Although most of the region is made up of
deserts and mountains, the coastal plains along the
Mediterranean provide the agricultural base of the region.
Highland
Enough precipitation falls on the Atlas Mountains of North Africa to make them hospitable to settlement and farming.
The Asir Mountains of the Arabian Peninsula are also agriculturally productive.
The Caucasus Mountains between the Black Sea and the Caspian Sea are known for their grandeur and beauty.
Desert covers much of Turkmenistan and Uzbekistan.
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Plains, Plateaus and Mountains
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Earthquakes The shifting tectonic plates of the region have built mountains,
shifted landmasses, and caused earthquakes. A 1999 earthquake in
Turkey measured 7.4 on the Richter scale, toppling more than
76,000 buildings and killing nearly 20,000 people.
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Earthquakes
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Natural Resources
Oil and Natural Gas About 70 percent of the world’s oil
reserves and 33 percent of the world’s natural gas reserves
are found in the region.
Minerals Turkmenistan has the world’s largest deposits of
sulfate. Morocco ranks third in the production of
phosphate.
The region may contain up to 10 percent of the world’s iron
ore reserves.
Building Diverse Economies Many countries in the
region are diversifying their economies so that they are not
so dependent on their oil and mineral exports.
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Climate and Vegetation
Section 2
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Section Objectives
Explain how the climates of the region differ.
Describe how the needs of a growing population have
affected the natural vegetation of the region.
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Terms to Know
Oasis
pastoralism
cereal
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A Geographic View
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Geographic Literacy
Because the coastal city of Agadir in Morocco has 300
days of sunshine per year, its beaches are a popular
tourist attraction, as are other Moroccan beaches along
the Atlantic Ocean and the Mediterranean Sea.
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Water: A Precious Resource
Rainfall is plentiful in some parts of North Africa, Southwest
Asia, and Central Asia, but in most places water is scarce.
Desert Climate Desert areas, such as North Africa’s Sahara,
cover almost 50 percent of the region.
In the deserts, summers are long and hot, winters are cold,
the land is mostly flat, and precipitation averages about
10 inches (25 cm) per year.
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Water: A Precious Resource
Steppe Climate Steppe is the second-largest climate
region.
Semi-arid conditions with light precipitation support short
grasses that are grazed by livestock.
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Climatic Variations Exports and Tourists The Mediterranean climate region
features cool, rainy winters and hot, dry summers.
This fertile area exports citrus fruits, olives, and grapes to Europe and the United States.
Tourism is an important industry.
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Climactic Variations
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Climatic Variations Rainfall Receiving plenty of rainfall, highlands areas support
forests and grain crops without irrigation.
A Sign of Things to Come? Climate changes have turned some
grassy plains in the region into deserts.
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Climatic Variations
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Section 1 - Summary North Africa, Southwest Asia, and Central Asia are
located at the crossroads of Asia, Africa, and Europe. The region is a jigsaw puzzle of peninsulas
and seas.
Rivers feed the inland seas and supply irrigation to parched lands. Their alluvial soil deposits enrich the land, especially in the Nile River Valley and delta.
The movement of tectonic plates forms mountains, moves landforms, and causes earthquakes in the region.
The region contains much of the world’s oil and natural gas reserves.
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Section 2 - Summary
Rainfall in North Africa, Southwest Asia, and Central
Asia varies widely. Most of the region contains arid
areas.
The four climate regions in North Africa, Southwest Asia, and Central Asia are desert, steppe, Mediterranean, and highlands.
Natural vegetation in the region varies widely and is closely related to rainfall and irrigation patterns.