1. It is a useful change in food.
A. Can be used a fertilizer.
B. Make the surroundings polluted
C. Can be used as food for pets
D. Could be eaten again
2. It is one of the factors that affect changes on food and medicine.
A. Medicine
B. Temperature
C. Water
D.Transportation
3. What degree celsius of temperature is required for room temperature?
A. 8-15
B. 15-25
C. -10 to -25
D. 30-40
4. What degree Celsius of temperature is required for cool temperature?
A. 8-15
B. 15-25
C. -10 to -25
D. 30-40