What Is the Tennessee Valley Authority?
The Tennessee Valley Authority (TVA) is a United States government agency established in 1933 to control floods, improve navigation, manufac
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Dams
How Does a Dam Produce Electricity?
How Does a Dam Produce Electricity? Much of the electricity we use is produced by power plants located in huge dams. Such plants, called hyd
Why Do Beavers Build Dams?
There are two kinds of beavers: the American and the European. The European beaver, found in Norway, Poland, Germany and France, lives in bu