The recycled water were indirectly used when the water blends with the supplies or source sits a while in an area to be stored, it can be a man-made or a natural. it can be in an underground water basins or a surface water reservoir.
A social scientist can be involved in a variety of works and fields of studies with titles like Archaeologists, Sociologists, Political scientists among other things. The formal surrender of Germany, otherwise known as the Armistice of 11 November 1918, is a historical document relating to the first world war. Hence why the social scientist that would most study the account of the formal surrender of Germany is a Historian.