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man-made depression of the level of the ground waters.

A territory subjected to negative influences in result of an accident or catastrophe caused by natural or man-made factors.

A type of transportation that moves passengers and cargo primarily by internal waterways, both natural, including rivers and lakes, and man-made, including canals, reserv

water reservoir characterized by water flowing in a direction of inclination in a surface deepening; there are distinguished: constant watercourses (with water flowing th