Pandemic: a disease outbreak that affects many people and many continents, or the entire world
Epidemic: a disease affecting more people than usual in a region or community.
This question asks us about many people coming down with the bird flu in Detroit.
Detroit is just one specific region and the bird flu didn't spread to many countries or continents. Therefore, it is best classified as an <u>epidemic.</u>
Factory system, system of manufacturing that began in the 18th century and is based on the concentration of industry into specialized—and often large—establishments. The system arose in the course of the Industrial Revolution