At the turn of the 20th century, _____ diseases were the leading causes of death, rather than _____ ones.
a. infectious, chronic
b. vitamin-deficiency, infectious
c. chronic, infectious
d. vitamin-deficiency, chronic
Question 2
In the U.S., the Centers for Disease Control and Prevention (CDC) is responsible for
a. monitoring health trends and compiling health-related statistics.
b. preventing epidemics.
c. monitoring the safety of the food supply.
d. preventing the importation of contaminated food.