Fact 1: Afire requires oxygen to burn.

Fact 2: In the vacuum of space, there's no oxygen to burn.

Given the two facts above, answer the question "Fires cannot burn where?" with the following options: 
- dormant state
 - one celled organisms
 - in the atmosphere
 - in a pit
 - in the woods
 - In the winter
 - the Great Barrier Reef
 - vacuum of space


 

        vacuum of space 