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The Lower Amazon begins where the darkly colored waters of the Rio Negro meets the sandy-colored Rio Solimões (the upper Amazon), and for over 6 km (3.7 mi) these waters run side by side without mixing. At Óbidos, a bluff 17 m (56 ft) above the river is backed by low hills.
The Amazon River is the largest river in the world in terms of its flow rate. In addition, it is the second longest river, measuring 6,575 km (4,086 mi) [3] from its source to the mouth of the Atlantic Ocean [4] after the Nile River which is considered to be the longest river in the world (see Source of the Nile River), although there is some dispute.
Mismi is a 5,597-metre (18,363 ft) mountain peak of volcanic origin in the Chila mountain range in the Andes of Peru.A glacial stream on the Mismi was identified as the most distant source of the Amazon River in 1996; [1] this finding was confirmed in 2001 [2] and again in 2007. [3]
At the same year, William Henry Edwards, American businessman and amateur entomologist, voyages up the Amazon, publishing his account in 1847, being read by Bates and Wallace, inspiring them to go to Brazil the following year. 1848-59 — Henry Walter Bates and Alfred Russel Wallace go to the Amazon. Wallace leaves in 1852 and Bates stays until ...
The Amazon basin is the part of South America drained by the Amazon River and its tributaries. The Amazon drainage basin covers an area of about 7,000,000 km 2 (2,700,000 sq mi), [ 1 ] or about 35.5 percent of the South American continent.
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The Amazon was a favorable environment for the development of these prehistoric societies, since they flourished on the banks of large rivers, which were numerous in the region. According to archaeological and ethno-historical data, the Amazon and Orinoco rivers were the main places where these organizations settled in South America and Central ...
The sun’s powerful magnetic field has long puzzled scientists. A new study suggests the source of its magnetic field is nearer the surface than first thought.