You are presented with the quiz "Cutting down trees has a what on the homes of animals in natural habitats?" 

But you don't know the answer, so you turn to your teacher to ask for hints. He says that "cutting down trees has a negative impact on an ecosystem" and "students take a field trip to an ecosystem to observe the homes of animals in natural habitats". 

So, what's the best answer to the question?


 

        negative impact   