Killing microorganisms in food can be used to extend the shelf life of that food, and irradiation kills microorganisms that spoil food. Given these facts, what can be used to extend the shelf life of food among the following options:
- irradiation
 - farming
 - Dehydration
 - rays or beams
 - vegetables
 - Cooking
 - Enzymes
 - fruit


 

 irradiation        