You are presented with the question "What do landfills have a negative impact on?" and the following answer choices: 
- The atmosphere
 - Ecosystems
 - earth
 - animals
 - Impact crater
 - Garbage
 - humans
 - Refuse containers

Now knowing that landfills have a negative impact on the environment and an ecosystem is an environment and all the members of that environment, choose the best answer.


 

  Ecosystems       