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.
1 A food desert is an area (neighborhood, community, etc) where healthy, affordable food is difficult to obtain. ( 2 Note: Distribute the Food Desert Statistics handout and have students read it.) In pairs, choose three of the following questions to answer.