You are presented with the question "What effect has the existence of humans had on the environment?" and the following answer choices: 
- climate
 - Negative
 - Neutral
 - Positive
 - Smoking
 - It expands
 - sweating
 - None

Now knowing that conserving resources has a positive impact on the environment and humans meet some needs and wants by using resources found in the natural environment, choose the best answer.


 

  Negative       