Someone falls into the water from a dock. what is the first thing you should do to this person?

If someone falls into the water from a dock, the fist thing you should do to help this person is: Throw a life preserver toward that person
In every dock, a life preserver will be placed near the water for this type of situation. After you throw it, you row it, reach the victim, and check if the victim could breathe properly

Urban growth invariably feeds increased commercialization and industrialization. it requires continually expanding land areas. when urbanization rates are high, and countries do not have the institutional and managerial capacities or economic wherewithal to manage such rapid growths, they exert intense pressure on the types and nature of the resulting settlements. they contribute to the development of overcrowded slums and shanty towns without adequate essential services and necessary infrastructure.-by asit k. biswas and cecilia tortajada