1018847
Question 1
Question
In paragraph (1) the word POSE is closest in meaning to?
Answer
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claim
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model
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assume
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present
Question 2
Question
In paragraph 2, why does the author include the information that dinosaurs had flourished for tens of millions of years and then suddenly disappeared?
Answer
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To support the claim that the mass extinction at the end of the Cretaceous is the best-documented of the dozen or so mass extinctions in the geological record
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To explain why as many as half of the species on Earth at the time are believed to have become extinct at the end of the Cretaceous
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To explain why paleontologists have always been intrigued by the mass extinction at the end of the Cretaceous
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To provide evidence that an impact can be large enough to disturb the environment of the entire planet and cause an ecological disaster
Question 3
Question
Which of the following can be inferred from paragraph 3 about the location of the meteorite impact in Mexico?
Answer
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The location of the impact site in Mexico was kept secret by geologists from 1980 to 1990
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It was a well-known fact that the impact had occurred in the Yucatán region
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Geologists knew that there had been an impact before they knew where it had occurred.
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The Yucatán region was chosen by geologists as the most probable impact site because of its climate.
Question 4
Question
According to paragraph 3, how did scientists determine that a large meteorite had impacted Earth?
Answer
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They discovered a large crater in the Yucatán region of Mexico.
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They found a unique layer of sediment worldwide.
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They were alerted by archaeologists who had been excavating in the Yucatán region.
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They located a meteorite with a mass of over a trillion tons
Question 5
Question
In paragraph 4, the word EXCAVATING is closest to meaning to...
Answer
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digging out
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extending
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destroying
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covering up
Question 6
Question
In paragraph 4 the word CONSUMED is closest in meaning to..
Answer
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changed
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exposed
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destroyed
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covered
Question 7
Question
According to paragraph 4, all of the following statements are true of the impact at the end of the Cretaceous period EXCEPT:
Answer
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A large amount of dust blocked sunlight from Earth.
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Earth became cold and dark for several months.
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New elements were formed in Earth’s crust.
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Large quantities of nitric acid were produced.
Question 8
Question
The phrase "tentatively identified" in paragraph 5 is closest in meaning to...
Answer
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identified after careful study
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identified without certainty
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occasionally identified
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easily identified
Question 9
Question
The word perspective in paragraph 6 is closest in meaning to...
Answer
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sense of values
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point of view
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calculation
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complication
Question 10
Question
Paragraph 6 supports which of the following statements about the factors that are essential for the survival of a species?
Answer
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The most important factor for the survival of a species is its ability to compete and adapt to gradual changes in its environment
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The ability of a species to compete and adapt to a gradually changing environment is not the only ability that is essential for survival.
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Since most extinctions of species are due to major meteorite impacts, the ability to survive such impacts is the most important factor for the survival of a species.
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The factors that are most important for the survival of a species vary significantly from one species to another.
Question 11
Question
According to the passage, who conducted investigations about the current dangers posed by large meteorite impacts on Earth?
Answer
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Paleontologists
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Geologists
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The United States Congress
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NASA
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