Silver is a whitish precious metal and has been used since about 4000 BC for various purposes such as money, silverware, jewelry and so on. Silver is measured in troy ounces. A troy ounce is 31.10348 grams.
Food Desert Locator from the USDA. GoodFood World Staff, May 4th, 2011. The official definition of a food desert is a low income census tract where at least a third of the residents are a mile from a supermarket or large grocery store.
The term was first documented in a 1995 report by the Nutrition Task Force Low Income Project Team of the United Kingdom Department of Health. It is defined as âareas of relative exclusion where people experience physical and economic barriers to accessing healthy foodsâ.tandards of access and methods of measurement vary among researchers to determine food deserts; some researchers classify food desert areas as those one to ten miles away from the nearest supermarket. Others identify food deserts as âareas with 10 or fewer stores with no more than 20 employeesâ.