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African countries where diamonds are mined depend on this natural resource as a source of employment, tax revenue and generally business development around the industry.
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they are sources that are vital in writing african history . and it also vital for writing documentary source of history.
slave bringing their culture with them
Ibn Battuta was a North African who reached India in 1333 (source: http://www.crf-usa.org/bria/bria18_1.htm) Is this what you were looking for?
Mali
The greatest source of wealth for the Portuguese trade with Africa in the fifteenth century was the trade of gold. Portugal established profitable trading relationships with African kingdoms along the west coast to acquire gold, which became a major source of wealth and helped fund further exploration and expansion.
African countries where diamonds are mined depend on this natural resource as a source of employment, tax revenue and generally business development around the industry.
Neocolonialism is certainly a part of the reason that African countries are underdeveloped. The exploitation of Africa's resources by wealthy foreign businesses (European, American, Chinese, and Russian) prevents the governments and peoples of these countries from properly profiting from these resources themselves. However, neocolonialism is not the only reason for African country's underdevelopment. Some other very important reasons are: internal corruption within African governments, ethnic and tribal disputes, low levels of national unity, infrastructure failures, lack of industrial development, poor allocation of foreign AID money, and high tariffs and non-tariff barriers on African products in developed countries and/or subsidies for domestically-produced equivalents in developed countries that shut out African competitors.
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For most of English history it was agriculture: for much of the 19th century it was industry; now it's services - a fairly routine progression, but Britain was one of the first countries to experience it.
one of the water source in the African savannah is the NILE
Biomass is the source of almost half of America's renewable energy.
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Biomass is the source of almost half of America's renewable energy.
It is probably an African country. Some of those countries are so densely populated with diversity that it is almost impossible to build a state without causing extreme ethnic conflict. Chad, for instance, has over 200 distinct ethnicities. This link is a crude source for ethnicities by country: http://www.infoplease.com/ipa/A0855617.html
Democratic Republic of Congo Zimbabwe Liberia Guinea-Bissau Somalia Comoros Solomon Islands Niger Ethiopia Central African Republic Source: Maps of world