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.
Desert Biome Description. The desert biome is one that is very hot and dry. They are found at the lower latitudes, between the Tropic of Cancer and the Tropic of Capricorn. Light winds occur often which evaporates any type of moisture that is typically going to develop in them.