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Lakes on the Black Sea coast are the direct result of soil erosion and marine or hydrographic accumulations, consequence of the specific evolution of the nearby sea basin. They depend on the variations in groundwater levels, rainfall or other hydraulic surface sources. In recent decades, as a result of many small, local earthquakes, some deep currents have appeared. Lakes as origins, are of fluvial-marine estuary, lagoons or artificial. Many of them are tourist attractions, due to the specific microclimate establi...

Environmental protection-related to economic activities have many important economic consequences. Normally, the threats to the environment come from economic development since all the problems concerning the protection of air, soil, and water always imply supplementary costs. All these costs must be well analyzed and balanced between the port administration, port companies, inhabitants, and authorities. In large ports areas from Romania, as Constanta and Mangalia near the Black Sea, during 1980-2010 were develope...