【正文】 that is, they vaporized into carbon dioxide.GWD6Q23:The primary purpose of the passage is to A. discuss an objection to Gurney’s theories about the uses of indicator mineralsB. explore the formation of diamonds and the reasons for their scarcityC. analyze the importance of kimberlite pipes in the formation of diamondsD. define the characteristics of indicator minerals under differing conditionsE. explain a method of determining whether kimberlite pipes are likely to contain diamondsGWD6Q24:Each of the following is mentioned in the passage as a difference between G10 garnet and other versions of garnet EXCEPT A. level of oxidationB. monness of occurrenceC. chemical signatureD. place of formationE. appearance in conjunction with diamondsGWD6Q25:The passage suggests that the presence of G10 garnet in a kimberlite pipe indicates that A. the pipe in which the garnet is found has a 90% chance of containing diamondsB. the levels of calcium and chrome in the pipe are conducive to diamond formationC. the pipe passed through a diamondstability field and thus may contain diamondsD. any diamonds the pipe contains would not have e from the diamondstability fieldE. the pipe’s temperature was so high that it oxidized any diamonds the pipe might have contained GWD6Q26:According to the passage, Gurney refined the use of ilmenites in prospecting for diamonds in which of the following ways?A. He found that ilmenites are brought up from the mantle by kimberlite pipes and erode out into the surrounding land in greater quantities than diamonds.B. He found that since ilmenites do not form in the diamondstability field, their presence indicates the absence of diamonds.C. He showed that highly oxidized iron content in ilmenite。 sloth bears also coexist with and have been killed by treeclimbing leopards, (52) and are often confronted and chased by rhinoceroses and elephants, which can topple trees (53). Collectively these factors probably selected against treeclimbing as a defensive strategy for sloth bear cubs. Because sloth bears are smaller than brown and polar bears and are under greater threat from dangerous animals, they may have adopted the extra precaution of carrying their cubs. Although cubcarrying may also be adoptive for myrmecophagous foraging, the behavior of sloth bear cubs, which climb on their mother’s back at the first sign of danger, suggests that predation was a key stimulus.Q9:The primary purpose of the passage is toA. trace the development of a particular behavioral characteristic of the sloth bearB. explore possible explanations for a particular behavioral characteristic of the sloth bearC. pare the defensive strategies of sloth bear cubs to the defensive strategies of cubs of other bear speciesD. describe how certain behavioral characteristics of the sloth bear differ from those of other myrmecophagous mammalsE. provide an alternative to a generally accepted explanation of a particular behavioral characteristic of myrmecophagous mammalsQ10: The author mentions rhinoceroses and elephants (lines 5253) primarily in order toA. explain why sloth bears are not successful foragers in grassland habitatsB. identify the predators that have had the most influence on the behavior of sloth bearsC. suggest a possible reason that sloth bear cubs do not use treeclimbing as a defenseD. provide examples of predators that were once widespread across the Indian subcontinentE. defend the assertion that sloth bears are under greater threat from dangerous animals than are other bear speciesGWD6Q11:Which of the following, if true, would most weaken the author’s argument in lines 1826 (“Furthermore … sloth bear cubs”)?A. Cubcarrying behavior has been observed in many nonmyrmecophagous mammals.B. Many of the largest myrmecophagous mammals do not typically exhibit cubcarrying behavior.C. Some sloth bears have home ranges that are smaller in size than the average home ranges of black bears.D. The lootion of black bears is significantly more efficient than the lootion of sloth bears.E. The habitat of black bears consists of terrain that is significantly more varied than that of the habitat of sloth bears.GWD6Q12:Which of the following is mentioned in the passage as a way in which brown bears and sloth bears are similar?A. They tend to bee aggressive when provoked.B. They live almost exclusively in treeless environments.C. They are preyed upon by animals that can climb or topple trees.D. They are inefficient in their lootion.E. They have relatively large canine teeth.GWD6Q13:Floating in the waters of the equatorial Pacific, an array of buoys collects and transmits data on longterm interactions between the ocean and the atmosphere, interactions that affect global climate.A. atmosphere, interactions that affectB. atmosphere, with interactions affectingC. atmosphere that affectsD. atmosphere that is affectingE. atmosphere as affectsGWD6Q14:Political Advertisement:Mayor Delmont’s critics plain about the jobs that were lost in the city under Delmont’s leadership. Ye