You are presented with the question "what has a negative impact on the environment?" and the following answer choices: 
- summer
 - massive damage
 - harmful substances
 - gravity
 - deforestation
 - underground garbage
 - h2o
 - enormous damage to homes

Now knowing that landfills have a negative impact on the environment and landfills are a designated place where garbage is buried underground, choose the best answer.


 

      underground garbage   