Cutting down trees has a negative impact on an ecosystem.
Students take a field trip to an ecosystem to observe the homes of animals in natural habitats.
Cutting down trees has a negative impact on the homes of animals  in natural habitats.
Cutting down trees has a what on the homes of animals in natural habitats?
Options:
(A) neutral impact
(B) deforestation
(C) positive impact
(D) no impact
(E) threatened
(F) Decrease bodily water
(G) massive damage
(H) negative impact