Fact 1: Dehydrating food is used for preserving food.

Fact 2: Food is then dehydrated in slow oven or dehydrator.

Given the two facts above, answer the question "How is food preserved?" with the following options: 
- liquid
 - moistness
 - hydration
 - bacteria
 - mold
 - heat
 - Cooking
 - drying


 

        drying 