Ch 18-19 Flashcards
Why is Africa often called the “Plateau Continent”
A huge plateau covers most of Africa, so Africa is often called the “Plateau Continent”
What part of Pangea was made up of Africa
The southern part of Pangea was made up of Africa
How deep are the basins in Africa
Basins are generally 5,000 feet deep
What is the world’s longest river
The world’s longest river is the Nile River
How are rift valleys created
Rift valleys are created as continental plates are pulled apart
How deep is Lake Tanganyika
Lake Tanganyika is 4,700 feet deep
What created most of Africa’s mountains
Volcanoes and earthquakes created most of Africa’s mountains
What types of minerals can be found in Africa
Gold, platinum, chromium, cobalt, copper, phosphates, diamonds, and many other minerals can be found in Africa
What percent of Africa falls between the Tropic of Cancer and the Tropic of Capricorn
90% of Africa falls between the Tropic of Cancer and the Tropic of Capricorn
How far inland does the Sahara stretch
It stretches 3,000 miles inland from the Atlantic
What is an aquifer
An aquifer is a huge store of water underground
What is desertification
Desertification is the expansion of dry conditions into moist areas that are next to deserts
When was oil discovered in Nigeria
oil was discovered in 1956
How much of Nigeria’s income is made up of oil sales
80-90% of Nigeria’s income is made up of oil sales
How many people were killed in pipeline explosions between 1998 and 2000
2,000 people died in the pipeline explosions between 1998 and 2000