Fact 1: Dehydrating food is used for preserving food.

Fact 2: Foods usually were covered with copious quantities of salt or saturated salt brine, and the salt was allowed to infuse into the tissue while dehydrating the product.

Given the two facts above, answer the question "What does salting food do to it?" with the following options: 
- decrease stamina
 - evaporation
 - hydration
 - Preserves it
 - Causes bacteria to spread
 - chemical changes
 - Causes it to rot
 - Cooks it


 

    Preserves it     