PrepTest 132, Section 3, Question 8
A vigorous debate in astronomy centers on an(463 more words not shown)
Which one of the following(9 more words not shown)
- AThe LHB is(32 more words not shown)
- BAstronomers now believe(15 more words not shown)
- CIf scientists continue(22 more words not shown)
- DThe Moon's evidence(24 more words not shown)
- ENew evidence has(27 more words not shown)
Reading the passage
We've already predicted the main point: new evidence supports widespread bombardment, but more evidence is needed before settling the debate. Look for both parts, not just a definition of the LHB or a description of one theory.
Working the answers
- A
This introduces the event and its possible extent. It leaves out the competing explanations and, especially, the new evidence and caution that are the point of the final paragraph.
- B
Needing more evidence doesn't mean astronomers believe they may never find enough. The ending calls for further investigation, not despair about its prospects.
- C
No collection rate or timetable for resolving the debate is given. This promises progress the author doesn't predict.
- D
The Moon's evidence doesn't settle the dispute in favor of this breakup theory. The author presents competing interpretations of that evidence, then offers a new clue about geographic reach.
- ECorrect
This matches our prediction: the possible Mars rock favors a widespread event, while the call for more samples keeps the competing theories in contention. It captures the contribution of the ending rather than just naming the topic.
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