Killing microorganisms in food can be used to extend the shelf life of that food, and sterilization kills all viable microorganisms. Given these facts, what can be used to extend the shelf life of that food among the following options:
- sterilization
 - Enzymes
 - poison
 - chemical changes
 - hybridization
 - gasoline
 - rays or beams
 - Cooking


 

 sterilization        