Fact 1: Landfills have a negative impact on the environment.

Fact 2: An ecosystem is an environment and all the members of that environment.

Given the two facts above, answer the question "What do landfills have a negative impact on?" with the following options: 
- The atmosphere
 - Ecosystems
 - earth
 - animals
 - Impact crater
 - Garbage
 - humans
 - Refuse containers


 

  Ecosystems       