Fact 1: Conserving water can be used for survival in a dry environment.

Fact 2: Deserts are usually very, very dry.

Given the two facts above, answer the question "What can be used for survival in the desert?" with the following options: 
- nutrients
 - shade
 - food and shelter
 - salt and water.
 - heat
 - picnics
 - Conserving water
 - Chemical energy


 

       Conserving water  