PrepTest 132, Section 3, Question 11
A vigorous debate in astronomy centers on an(463 more words not shown)
The author implies that all(13 more words not shown)
- Athe approximate duration(3 more words not shown)
- Bthe origin of(6 more words not shown)
- Cthe idea that(6 more words not shown)
- Dthe idea that(13 more words not shown)
- Ethe approximate amount(6 more words not shown)
Reading the passage
All three accounts accept that bombardment occurred. They disagree about whether it was a distinct catastrophe and how broadly it extended. Start with that shared ground, then check whether an answer adds something one group would reject.
Working the answers
- A
The continuous-decline account looks back over billions of years; the third group emphasizes a brief catastrophe. They don't agree about duration.
- B
The first group proposes a body in solar orbit, while the third places the breakup within the Earth-Moon system. Those are different origins.
- CCorrect
This is more specific than our initial prediction, but it fits the shared endpoint: the heavy cratering diminished. One account explains a distinct event, another the conclusion of a long decline, and the third a brief local event whose debris was swept up. None requires cratering to have stopped entirely.
- D
Life could not have survived during the bombardment. That doesn't establish that life already existed and was destroyed. The answer adds that unsupported history.
- E
No agreed quantity of debris is given. Accepting that bombardment occurred doesn't mean the groups agree about how much material was involved.
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