Fact 1: Agreenhouse is used to protect plants from the cold.

Fact 2: If it's too cold, some plants freeze and die.

Given the two facts above, answer the question "What does a greenhouse protect plants from?" with the following options: 
- Injury
 - Winter
 - math
 - disease
 - death
 - sound
 - wind
 - science


 

     death    