Information and IdeasMediumInference from a change in behaviour
Information and Ideas practice question
For decades, the island's seabirds nested on the cliffs of the northern shore. After rats reached the island in 2010, the colony shrank each year, and by 2018 the remaining birds had moved to a rocky stack just offshore that the rats could not reach. This pattern suggests that ____
Which choice most logically completes the text?
- A. the birds relocated because the stack offered protection from the rats that had made the cliffs unsafe.Correct
- B. the birds preferred the stack all along.
- C. the rats moved to the stack as well.
- D. the cliffs eroded away after 2010.
Answer: A. the birds relocated because the stack offered protection from the rats that had made the cliffs unsafe.
Shrinking with rats present, then a move to a rat-free site.
Why the other answers are wrong
- B. the birds preferred the stack all along.
- They nested on the cliffs for decades.
- C. the rats moved to the stack as well.
- The stack is described as out of the rats' reach.
- D. the cliffs eroded away after 2010.
- No erosion is mentioned.
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