The urbanization of the United States quickened due to technology improvements.W
ithout innovations in food production, the factories could not have grown so quickly.
The trend quickened after 1860 and continued throughout the 21st century as well.
By 2007, more Americans lived in or near cities than they did in rural areas.
Sample Response: Based on the table of contents, I would expect to learn about different medical terms, the origin of the bird flu, and how food can affect the spread of diseases.
