Which of the following would most likely cause cross-contamination?

cut raw meat on a cutting board?
mix sliced carrots, tomatoes, and lettuce in a salad?
mix raw meat and rice before cooking?
cut raw meat on a cutting board then cut bread on the board?

In a study of a weight loss program, 40 subjects lost a mean of 3.0 lb after 12 months. does the weight loss program have practical significance? a. yes, because the weight loss program worked and the subjects lost a mean of 3.0 lb. b. no, because the mean weight loss of 3.0 lb after one year does not seem to justify the program. c. no, because the sample of 40 subjects was too small to determine if the program was useful. d. yes, because the mean weight loss of 3.0 lb after one year does seems to justify the program.

Ingredients used in tobacco products been banned?

Which disease could be possibly prevented through the use of regular physical exercise? a: cirrhosis b: asthma c: gout d: type 2 diabetes