A a scale developed by astronomers rates the

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A. a scale developed by astronomers rates the likelihood that a particular asteroid or comet may B. a scale that astronomers have developed rates how likely it is for a particular asteroid or comet to C. astronomers have developed a scale to rate how likely a particular asteroid or comet will be to D. astronomers have developed a scale for rating the likelihood that a particular asteroid or comet will E. astronomers have developed a scale that rates the likelihood of a particular asteroid or comet that may. Answer: ------------------------------------------------------------------------------------------------------
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Q18 A medieval manuscript called L contains all eighteen extant tragedies by the Greek playwright Euripides. Of these, ten called the “select plays,” are accompanied in L by ancient commentaries and also appear in other medieval manuscripts; this group includes some of Euripides’ best-known works, including the Medea . The other eight, which appear in alphabetical order, without commentary. The Electra is one of the alphabeticals. Which of the following can be reliably concluded on the basis of the Statements given? A. Only Euripides’ best-known works are accompanied by ancient commentaries in extant medieval manuscripts. B. The select plays are accompanied by ancient commentaries because they were the best known of Euripides’ works. C. No commentaries were written about Euripides’ Electra in ancient times. D. Euripides’ Medea never appears in medieval manuscripts unaccompanied by ancient commentary. E. Euripides’ Electra does not appear accompanied by a com- mentary in any extant medieval manuscript. Answer: ------------------------------------------------------------------------------------------------------- Q19 Plant scientists have been able to genetically engineer vegetable seeds to produce crops that are highly resistant to insect damage. Although these seeds currently cost more than conventional seeds, their cost is likely to decline. Moreover, farmers planting them can use far less pes- ticide, and most consumers prefer vegetables grown with less pesticide, Therefore, for crops for which these seeds can be developed, their use is likely to become to norm. Which of the following would be most useful to know in evaluating the argument above? A. Whether plant scientists have developed insect-resistant seeds for every crop that is currently grown commercially B. Whether farmers typically use agricultural pesticides in larger amounts than is necessary to prevent crop damage C. whether plants grown from the new genetically engineered seeds can be kept completely free of insect damage. D. Whether seeds genetically engineered to produce insect-resistant crops generate significantly lower per acre crop yields than do currently used seeds. E. Whether most varieties of crops currently grown commercially have greater natural resistance to insect damage than did similar vari-
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eties in the past.
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