. . . . . . . . . . . . . . . . "The Quantity of a Collection occurring in a Place has a particular Measure, which is related to the amount generally needed.\nThere is evidence that volatile materials have always been scarce on the Moon .\nA global effort to tackle water scarcity is getting underway. INI\nIt is the scarceness of these precious metals that adds to their luster. INI\n"^^ . . . .