How often should you conduct a skin self-examination to detect possible skin cancer?
a. once a week
b. every two weeks
c. once a month
d. every six months
e. once a year
Question 2
Salmonella bacteria have been found in about one-third of all ____ sold in the United States.
a. eggs
b. pork products
c. poultry
d. dairy products
e. frozen vegetables