Fact 1: Astronauts require preserved food for extended flights.

Fact 2: Most of the Shuttle foods are preserved by dehydration, which saves weight and storage space.

Given the two facts above, answer the question "astronauts require what food for extended flights?" with the following options: 
- Echinoderm.
 - layers of fat
 - dehydrated
 - fresh
 - hand picked
 - nutrients
 - frozen
 - hydration


 

   dehydrated      