Question

Which one of the following statements can be inferred from the passage?

• A. In an ecosystem, altering any one element has a ripple effect on all others
• B. Climate change affects temperate and Artic regions more than equatorial or arid ones
• C. A compact layer of wool is warmer than a similarly compact layer of goose down
• D. The loss of the subnivium, while tragic, will affect only temperate and Artic regions

Answer 1

The correct option is A

In an ecosystem, altering any one element has a ripple effect on all others

We can eliminate option (2) as nowhere in the passage have we said that climate change is purely an arctic phenomenon. We can eliminate option (3) as the essential inference in the passage has nothing to do with wool which was used as an example to highlight a point. We can eliminate option (4) as loss of subnivium even though has its most prominent effect on cold regions; the passage uses subnivium to point out how small things affect each other. So the best inference is the option (1).