Q: Fact 1: Cutting down trees has a negative impact on an ecosystem. Fact 2: An ecosystem can be in a desert, a tropical jungle, an ocean or a pond. Given the two facts above, what type of impact does cutting down trees have on jungles?

Available choices: (A). dangerous (B). negative (C). uncontrolled (D). mechanical (E). unpredictable (F). growing (G). positive (H). Pollution
The answer is:
(B).