The New Encyclopędia Britannica: L-ZEncyclopędia Britannica, 1992 - 32 pages |
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Page 46
... valley system . In the Virunga Mountains , northeast of Lake Kivu , there are periodic outbursts ( about every 10 or 12 years ) that have created a series of lava flows . One of these volcanoes dammed the rift valley and converted a ...
... valley system . In the Virunga Mountains , northeast of Lake Kivu , there are periodic outbursts ( about every 10 or 12 years ) that have created a series of lava flows . One of these volcanoes dammed the rift valley and converted a ...
Page 98
... valley through eastern and northeastern Africa and the Red Sea to the Jordan River valley in southwestern Asia . In East Africa itself , the southern , eastern , and western branches of the system can be discerned . For map coverage of ...
... valley through eastern and northeastern Africa and the Red Sea to the Jordan River valley in southwestern Asia . In East Africa itself , the southern , eastern , and western branches of the system can be discerned . For map coverage of ...
Page 112
... valley as much as 12 miles wide . Floods come in early September at Bakel , reaching Da- gana by mid - October . During the flood season the water level rises 12 feet ( 3.5 metres ) , the flow is some 300 times greater than in the dry ...
... valley as much as 12 miles wide . Floods come in early September at Bakel , reaching Da- gana by mid - October . During the flood season the water level rises 12 feet ( 3.5 metres ) , the flow is some 300 times greater than in the dry ...
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20th century Abelian group addition aesthetic Afghanistan agriculture Albania alcohol algae algebra animals basin called central centre ceremonial climate coast common complex numbers Congo contains Cōte d'Ivoire countries crops cultivation culture dance defined desert developed drinking drug East eastern economic Egypt elements equations European example farm feet field Figure finite fish forest functor Igbo important Indians integers irrigation isomorphism Kabul Kenya Lake Lake Chad Lake Victoria land language lattice Lie algebra linear major mapping miles modern mountains Niger Nigeria Nile northern operations patterns percent period Plains plants Plateau polynomial population rainfall real numbers region ring ritual River Sahara savanna social soil South Africa southern Africa species subgroup Sudan Tanzania theory tion traditional tribes tropical United valley vector space vegetation village West Africa western x₁ Yoruba Zaire Zambia Zimbabwe