8 Answer: 
 _____ is the best and least expensive way of destroying microbes.
 a. Freezing c. Radiation
 b. Controlling moisture levels d. Heat
9 Answer: 
 Because of its _____, food is a good place for microbes to grow.
 a. volatility c. nutrients
 b. nooks and crannies d. temperature
10 Answer: 
 Every 18°F (10°C) that the temperature of a food is reduced
slows chemical and biochemical reactions by almost _____.
 a. three quarters c. one third
 b. one half d. two thirds