Fact 1: Microorganisms cause food to spoil.

Fact 2: Irradiation kills microorganisms that spoil food.

Given the two facts above, answer the question "what can keep food from going bad?" with the following options: 
- irradiation
 - Cooking
 - Dehydration
 - sensory neurons
 - animal transport
 - Enzymes
 - nutrients
 - layers of fat


 

 irradiation        