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Rivers have always been essential for human life and settlement. A source for drinking, the source of food, and a way to transfer goods from one place to another. They are essential in the environment of rainforest and wetlands.
The Yangtze holds the title of Asia’s longest river. The Yangtze has a momentous place in China’s history and culture, providing some of the country’s most fertile land as well as some of its most artistically inspiring scenery.
Where the Mekong river runs, the land is incredibly verdant shaping one of the richest areas of biodiversity on the planet. Thousands of species call its shores and waters home. Long an essential trade route the Mekong passes through, or close to, some of the region’s most important cities, including Vientiane, Phnom Penh and Saigon.
The Yangtze or Yangzi is the longest river in Asia and the longest in the world to flow entirely within one country (Qinghai, Tibet, Yunnan, Sichuan, Chongqing, Hubei, Hunan, Jiangxi, Anhui, Jiangsu, Shanghai provinces). It rises in the northern part of the Tibetan Plateau and flows 6,300 km in a generally easterly direction to the East China Sea.
Tributaries: Yalong, Min, Tuo, Jialing, Han, Wu, Yuan, Zi, Xiang, Gan, Huangpu.
In mid-2014, the Chinese government announced it was building a multi-tier transport network, comprising railways, roads, and airports, to create a new economic belt alongside the river.
There are four major rivers in Africa: the Nile, the Zambezi, the Congo, and the Niger. The Nile is one of the longest rivers in the world.
The Zambezi's most noted feature is Victoria Falls. Other notable falls include the Chavuma Falls at the border between Zambia and Angola, and Ngonye Falls, near Sioma in Western Zambia.
En el ojo se contienen unos 7 millones de conos, estos son los responsables de la visión central, nos dan la percepción del color y son menos sensibles a la luz que los bastones
El ojo humano contiene unos 130 millones de bastones, son los responsables de la visión periférica y nocturna, sirven para la detección del movimiento
North America
In the 18th century, the river was the primary western boundary of the young United States, and since the country's expansion westward, the Mississippi River has been widely considered a convenient dividing line between the Eastern, Southern, Midwestern United States, and the Western United States.
South America
Amazon River, the greatest river of South America and the largest drainage system in the world in terms of the volume of its flow and the area of its basin.
Main tributaries - Marañón, Napo, Japurá/Caquetá, Rio Negro/Guainía, Putumayo, Trombetas, Ucayali, Javary, Juruá, Purús, Madeira, Tapajós, Xingu.
The Amazon and its tributaries flow through the countries of Peru, Bolivia, Venezuela, Colombia, Ecuador, and Brazil before emptying into the Atlantic Ocean 6, 437 km (4,000 miles) from the Amazon's headwaters high in the Andes mountains of Peru.
