The answer is B.
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Dams use hydroelectricity to power towns and cities, so I would go with B) provide power
Daniel Levinson's life structures model explores the idea of development beyond the adolescence stage. In his theory, the two key concepts are the stable period and the transitional period. While Irene Frieze theory says woman go through a slightly different developmental process.
One obvious similarity between both the Northeast and the Southeast is the Atlantic ports for international trade. Both areas contain parts of the Appalachian Trail. Both areas have mountains. They each have their own mannerisms and cultures. Interstate 95 traverses both the Northeast and the Southeast. Both do farming but in different quantities. Both have severe weather patterns with the Northeast being hit by both hurricanes and storms called Nor'easters. The Southeast it often hit by hurricanes. Winter storms are hardly Both suffered great losses from the Civil War and are very proud of their military heritage.
It explains how federal courts are structured
