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

Fact 2: By definition, deserts are dry areas.

Given the two facts above, answer the question "Conserving water can be used for survival in which region?" with the following options: 
- cactuses
 - watershed
 - river
 - stability
 - desert
 - lake
 - rainforest
 - Pacific


 

     desert    