LYCOS RETRIEVER 
Brazil: Amazon River
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Most of Brazil’s large lakes are created by dams constructed to produce hydroelectric power or to provide water for irrigation. The largest lakes are Sobradinho, on the São Francisco; Tucuruí, on the Tocantins; Balbina, on the Amazon; and Furnas, on the Paraná. The São Francisco is ... used for irrigation, and there are a number of reservoirs in the Northeast that provide irrigation and drinking water during the dry season and drought years.
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Anyone interested in discovering more about any of these Brazil tours can find numerous Brazil virtual tours options available on most of the tour operators in Brazil websites. These Brazil virtual tours will provide you with some useful insights into what to see. In particular, Brazil virtual tours of the Amazon is highly recommended before a visitors decides to embark on their journey there as there is literally so much to see and do that a Brazil virtual tour of the Amazon is the only real way to ensure you have the chance to select the right tour for you.
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West Germany did not require IAEA safeguards, and following the 1975 agreement Brazil transferred technology from its power plant projects to a secret program to develop an atom bomb. Code-named "Solimões," after a river in the Amazon, the secret program was started in 1975 and eventually came to be known publicly as the Parallel Program. In the beginning of the eighties, the Navy Nuclear Parallel Program began to expand, especially after the uranium enrichment process named jet nozzle (which, as part of the Agreement, was bound to be transferred to NUCLEBRAS) turned out to be infeasible. During the decade, the civilian nuclear program lagged behind. Meanwhile, parallel research for obtaining fuel cycle know-how was intensified.
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The variety of climates together with soil and drainage conditions are reflected in Brazil's vegetation. In the Amazon Basin and in those places along the Atlantic coast where the rainfall is very heavy, there is tropical rain forest composed of broadleaf evergreen trees growing luxuriantly. The rain forest is made up of a great many different species, as many as 3,000 in a sq. mile (2.6 sq. km). In the lowlands and plateaus of the eastern coast where rainfall is slightly less and the dry season is really dry, there is semi-deciduous forest, where the trees are smaller than in the rain forest and lose their leaves in the dry season. In the semi-arid northeast, the caatinga, a dry bush, predominates. The greater portion of the central part of Brazil is covered with a woodland savanna known as the cerrado.
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Forests cover half of Brazil, with the largest rain forest in the world located in the Amazon Basin. Recent migrations into the Amazon and large-scale burning of forest areas have brought international attention. The government has reduced incentives for such activity and is implementing an ambitious environmental plan that includes an Environmental Crimes Law with serious penalties for infractions.
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The São Francisco River is the largest river wholly within Brazil, flowing for over 1,000 miles (1,609 km) northward before it turns eastward into the Atlantic. It rises, like the Paraná and the Tocantins, in the Central Highlands of the coun try. The upper river is navigable for shallow draft riverboats in some areas, but only the last 172 miles (277 km) of the lower river is navigable for ocean-going ships.
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Amazon River