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Ch 18 Africa
final exam words
Word | Description |
---|---|
Nile River | world's longest river, flows 4000 mi through Uganda,Sudan & Egypt. 95% of Egyptians depend this water for irragation. |
Mount Kilimanjaro | Africa's highest Mountain, volcano, Tanzania, Africa |
Coffee | most profitable commodity, continent grows 20% of the world's supply |
Climate areas | mostly desert, tropical wet, tropical wet and dry, semiarid |
Aquifer | an undeground layer of rock that stores water |
Aswan High Dam | a dam on the Nile River in Egypt, completed in 1970, which increased egypt's farmable land by 50% and protected it from droughts and floods. Gives regular supply of water. |
Rift Valleys | a long thin valley created by the moving apart of the continental plates, show that the eastern part of africa is pulling away from the rest of Africa |
Escarpment | a steep slope with a nearly flat plateau on top, the Great Escarpment marks the edge of the continent's plateau in Southern Africa |
Sahara Desert | largest desert in the world, means desert in Arabic, stretches 3000 mi, only 20% of Sahara consists of sand & mts, gravel from rest, reach very high temp. & frezzing temps too |
Serengenti Plain | area of East Africa containing some of the best grasslands in the world and many grazing animals, place where the largest numbers of land mammals make annual immigrations |
Desertification | an expansion of dry conditions to moist areas that next to deserts, human activity is speeding up the process |