Fact 1: Agreenhouse is used to protect plants by keeping them warm.

Fact 2: Then the planted seeds are placed in a warm greenhouse.

Given the two facts above, answer the question "why are seeds put in a greenhouse?" with the following options: 
- to inhibit them
 - It remains dormant
 - by indirect light
 - lowered energy cost
 - evaporation
 - cooler air
 - it protects them
 - less moisture


 

       it protects them  