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Hydroelectric energy is made by moving water. Hydro comes from the Greek word for water. Hydroelectric energy has been in use for thousands of years. Ancient Romans built turbines, which are wheels turned by flowing water. Roman turbines were not used for electricity, but for grinding grains to make flourand breads. Water mills provide another source of hydroelectric energy. Water mills, which were common until the Industrial Revolution, are large wheels usually located on the banks of moderately flowing rivers. Water mills generate energy that powers such diverse activities as grinding grain, cutting lumber, or creating hot fires to create steel. The first U.S. hydroelectric power plant was built on the Fox River in 1882 in Appleton, Wisconsin. This plant powered two paper mills and one home. Harnessing Hydroelectricity To harness energy from flowing water, the water must be controlled. A large reservoir is created, usually by damming a river to create an artificial lake, or reservoir...

Definition: Ease of doing business is an index published by the World Bank. It is an aggregate figure that includes different parameters which define the ease of doing business in a country. Description: It is computed by aggregating the distance to frontier scores of different economies. The distance to frontier score uses the ‘regulatory best practices’ for doing business as the parameter and benchmark economies according to that parameter. For each of the indicators that form a part of the statistic ‘Ease of doing business,’ a distance to frontier score is computed and all the scores are aggregated. The aggregated score becomes the Ease of doing business index. Indicators for which distance to frontier is computed include construction permits, registration, getting credit, tax payment mechanism etc. Countries are ranked as per the index. Parameter of ease of doing business Ease of doing Business is a relative term which has meaning only when comparison between two countries is made....