With better economies and better healthcare, the quality of doctors and medicine is improved, decreasing sickness and disease in the population, allowing them to live longer, extending their life spans.
answer explanation: <u>A reference designator indicates the location to insert a component on an item, for example, where to mount an electronic component on a printed circuit board. ... Link a single reference designator to a single (E)BOM line. One or more identical items on the (E)BOM line have the same reference designator.</u>
