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In the United States between 1850 and 1880, the number of farmers continued to increase, but at a rate lower than that of the general population. Which of the following statements directly contradicts the information presented above?
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A large manufacturer of electronic equipment expects to refurbish 1,800 units next year. Yet it is unlikely that a sufficient number of replacement parts will be available because the number of factory returns has been consistently decreasing over the past five years.
The argument above assumes that
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From 1983 to 1993, millions of gallons of liquid waste from commercial manufacturing plants were dumped into inland waterways. There is increasing apprehension that the liquid waste will leak contaminants into local water supplies. That apprehension is unwarranted, as tests of the local water supplies of regions near commercial manufacturers who practiced such dumping during the 1960s showed little or no evidence of such contaminants.
Which of the following, if true, most seriously undermines the argument above?
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The greater the number of autonomous departments in a government, the more essential is a high level of cooperation. Increased numbers of autonomous departments demand a larger number of specialized policy makers, which leads to a greater burden on administrators and, possibly, to a greater number of difficulties in setting a general policy
There are always greater numbers of autonomous departments in democratic governments than there are in centralized governments.
Which of the following statements must be true if all of the statements above are true?
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Statement I. From 1983 to 1991, the yearly level of ultraviolet rays, or UVRs, to which the average person was exposed went down considerably.
Statement II. From 1983 to 1991, the occurrence of retinal irritations caused by UVR exposure went up twofold from previous levels, which were already high. This was true for those people whose exposure was average for each year during the eight-year period.
Which of the following, if true, would reconcile the apparent inconsistency between Statement I and Statement II?
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Since running an automobile engine requires fuel, many drivers turn off the engines in their cars when they make a short stop. Yet, scientific studies demonstrate that, in those cases, the cars actually consume more fuel than they would have if the drivers had left the engines running.
Which one of the following, if true, most contributes to an explanation of the apparently paradoxical results of the studies?
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The average length of time that a patient lived after being diagnosed with stomach cancer in a certain state increased steadily beginning in 1982. The reason for this increase is that more people experienced a complete remission of their disease than previously. Improved surgical techniques that increased the effectiveness of removing cancerous growths at an advanced stage of development were responsible for the increase in longevity of people diagnosed with stomach cancer.
Which of the following, if true, would most likely be used as evidence to show that improved surgical techniques used on cancer patients diagnosed with stomach cancer were responsible for increasing the longevity of stomach cancer patients?
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Microfiber synthetics have been taking the place of natural fibers in an ever-increasing number of clothes because they provide the same durability and deplete fewer natural resources. A shirt made of microfiber synthetics is, however, three times as expensive to produce as a natural-fiber shirt. It follows that the substitution of microfiber synthetic clothes for natural-fiber clothes is, at this time, not recommended from a financial standpoint.
Which of the following statements, if true, most seriously weakens the argument?
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When the maker of Megapower, a vitamin supplement, modified its formula two years ago, Tasmania, an island off the coast of New Zealand, suffered a decrease in its export earnings. Tasmania`s only export, kiwi fruit, constitutes a substantial portion of the world supply of that fruit. Researchers concluded that the old Megapower formula contained natural kiwi extract, but the new formula does not.
Which of the following, if true, gives the strongest support for the researchers`claim?
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Which of the following, if it were to happen, would best accord with Malthus`s contention as it is stated in the first paragraph?
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Replacing the word precipitous with which one of the following, would least affect the overall meaning of the sentence?
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The cost of operating many small college administrative offices is significantly reduced when the college replaces its heavily compensated administrative assistants with part-time work-study students whose earnings are partially subsidized by the government. Therefore, large universities should follow suit. They will certainly realize more financial gains than do the small colleges.
In the above argument it is assumed that
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Owing to a combination of its proximity and _____atmosphere, Mars is the only planet in our solar system whose surface details can be discerned from the Earth.
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Using the hardships of the Joad family as a model, John Steinbeck`s The Grapes of Wrath effectively demonstrated how one clan`s struggles epitomized the _____experienced by an entire country.
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The Mayan pyramid of Kukulkan is more than just _____edifice; this imposing structure was built to create a chirping echo whenever people clap their hands on the staircase. This echo sounds just like the chirp of the Quetzal, a bird which is sacred in the Mayan culture.
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Some wealthy city-dwellers become enchanted with the prospect of trading their hectic schedules for a bucolic life in the countryside, and they buy property with a pleasant view of farmland-only to find the stench of the livestock so _____that they move back to the city.
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