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

Fact 2: When it's warm outside, both plants and pests grow faster.

Given the two facts above, answer the question "What does a greenhouse make plants do?" with the following options: 
- Grow faster
 - wither
 - it needs them
 - adding heat
 - growth
 - reproduce
 - Grow slower
 - Stop growing


 

 Grow faster        