You are presented with the question "what uses a greenhouse to be protected from the cold?" and the following answer choices: 
- orchids
 - Roundworms
 - freezing
 - clouds
 - animals
 - organisms
 - our planet
 - monkeys

Now knowing that agreenhouse is used to protect plants from the cold and many orchids are rewarding indoor plants, choose the best answer.


 

 orchids        