You are presented with the question "how is a greenhouse used to protect plants?" and the following answer choices: 
- prevent heat loss
 - raising their temperature
 - storing water
 - reusing materials
 - increase oxygen
 - It helps them survive
 - reflecting light
 - evaporative cooling

Now knowing that agreenhouse is used to protect plants by keeping them warm and if the weather is warm, their temperature rises, choose the best answer.


 

  raising their temperature       