Tropical rainforests have some of the world's largest rivers, like the Amazon, Madeira, Mekong, Negro, Orinoco, and Zaire (Congo). Most of the river basins in the region are getting very large rainfall in the river basin But with countless empty into small rivers, streams and creeks. For example, the Amazon alone has some 1,100 branches, 17 of which more than 1,000 miles long. Although large tropical rivers are fairly uniform in the water regime, but their tributaries vary. Many tropical rivers, springs have extremely high and low levels occur in different parts of the year.
In addition to the rivers that tropical forests have usually lake formed when a river changes flow stasis Dong. Tropical waters, whether they are big rivers, streams, or lakes Oxbow, almost as rich in wildlife as tropical forests that surround them. But they also are becoming
increasingly threatened by human activities, including pollution, siltation resulting from deforestation, hydroelectric projects, and over harvesting of resident species
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