You are presented with the question "what has a positive impact on the environment?" and the following answer choices: 
- temperature
 - reusing things
 - a hydraulic system
 - water conservation
 - peachleaf willow
 - density
 - Green beans
 - addition

Now knowing that recycling has a positive impact on the environment and recycling means reusing things, choose the best answer.


 

  reusing things       