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The primary purpose of the passage is to
Economist: It is generally less expensive to lower carbon dioxide emissions by building new low-emission power plants than by renovating existing ones. Therefore, developed nations that have little need to build new power plants can most efficiently help to lower global emissions by subsidizing the construction of new low-emission power plants in rapidly developing nations where many power plants are being constructed.
In order to evaluate the strength of the economist's argument, it would be most helpful to know which of the following?
Between 1948 and 1958, 11 mKon of the 13 midion homes constructed in the United States were built In the suburbs, so that by 1960 there were as many people who lived in the suburbs as laige cities.
Although many people assume that excessive use of the saltshaker fully accounts for the overly salt-rich diet of the United States, the fact is that about 77 percent of the salt, even with Americans who sprinkle liberally, comes from processed foods such as lunch meats, commercial soups, packaged cakes, and potato chips.
By the end of next year, analysts have predicted, the widespread use by online businesses of the new security protocols proposed for credit cards.
During the nineteenth century, the popularity of Charles Dickens's fiction owed much to its being so easily adaptable into effective stage versions: so that, during anv given period many as 20 London theaters might be simultaneously in production of adaptations of Dickens's latest story, and thus even nonreaders quickly became acquainted with simplified versions of his works.
Until the Apollo astronauts brought samples of lunar material to Earth during 196£-72, scientists believed that the Moon's surface was largely undisturbed, given its dry, airless environment. Examination of the samples has shown otherwise. Micrometeorites, many smaller than a pencil point, constantly rain onto the Moon at up to 100,000 kilometers per hour, chipping materials or forming microscopic craters. Some melt the soil and vaporize and recondense as glassy coats on other specks of dust. Impacts weld debris into lumps of heterogeneous matter called "agglutinates." Complicated interactions with solar particle streams convert iron into myriads of microscopic iron grains. The regdith—pebbles, sand, and dust-from these erosion processes blankets the Moon. Much of the top layer consists of a complex abrasive dust of microscopic glass shards that can grind machinery and sealing devices and damage human lungs.
The Apollo specimens held by the United States are doled out in ultra-small samples to scientists who demonstrate that nothing else will suffice for high-value experiments. Renewed interest In lunar exploration in the late 1980s meant that materials designed to simulate lunar regolith—simulants—were needed for research to develop schemes for lunar building and procedures for extracting elements such as oxygen found abundantly in regolith. That led to the development of JSC-1 in 1993, made of volcanic cinder cone from a quarry in Arizona in the U.S. The more than 22 metric tons made was in high demand. Efforts are now afoot to manufacture 16 metric tons of JSC-1 A, with 1 ton of fine grains, 14 tons of moderately fine, and 1 ton of coarse.
Which of the following can most reasonably be inferred from the passage?
Upon entering the mayor's outer office, one is immediately greeted by a mural of local historical images, for which several are repeated in other paintings, the sofa pillows, a patchwork quilt, and crafted items enclosed in a locked glass case.
Company J is reducing its information technology (IT) staff by one-half but is requiring the IT department to continue meeting all the IT needs of the employees. IT managers plan to accomplish this by investing in a computer program that relieves employees of the need to remember their passwords for logging in to Company J's numerous office systems. Half of the IT staffs time is currently spent on password-related assistance, so once the program is implemented, Company J can make the required staff cuts.
Which of the following would it be most useful to know in order to evaluate whether the IT managers' plan is feasible as a means to continue meeting the IT needs of the employees?
