Waubonsee Community College

Extreme environments, produced by Evan Clark

eng

videorecording

Extreme environments

electronic resource

904565430

produced by Evan Clark

24

The world's lakes and flowing rivers constitute only one percent of the Earth's water. However the fresh water in rivers is vital to all land-based life. Population pressures are putting all major waterways under stress. Rivers provide drinking water, and water for agricultural purposes. Since the beginning of civilization, they have also been used for transport, and cities have grown on their banks. An example, the river Nile is the longest in the world, providing animals and the people of Africa - in particular, Egypt - with their principle water source

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