You are presented with the question "What kind of effect does a squirrel have on the ecosystem?" and the following answer choices: 
- Negative
 - Positive
 - adding heat
 - growth
 - food
 - Destructive
 - Powerful
 - support

Now knowing that planting trees has a positive impact on an ecosystem and thus one important job the squirrel does in the ecosystem is to plant trees, choose the best answer.


 

  Positive       