How much mwh does a dam make?

What cathedral bell tower in Italy was constructed to be vertical although it is not vertical today? How did competition of the Eric Canal in 1825 affected the US? Does doldrums lies between 30degree and 40degree north? Where is the Tom Rogers Museum Incorporated in Greenfield California located? Continent and country in which atacam desert and Kalahari desert are? What causes rapid cooling at night in the desert? Why does damming a river affect the earth? How many dead zones in Lake Erie? What are the proportions for the Washington monument? What happens as the depth of a parcel of land increases beyond the depth of a typical lot? When was Jerusalem Chords Bridge created? How many rivers are in Ottawa Canada? If the actual length of the bridge is 4200 feet then what is the scale of the diagram of the bridge? What is the Name of three sea canals of the world? What is the start of a stream called? How long after a root canal should a tooth be crowned? The different stages of development in anImals? What do people from Great Lakes St Lawrence Lowlands live in? How wide is the Yellow River? Welsh writings on the Washington monument?