Ozone in the stratosphere blocks deadly ultraviolet rays from the sun, but chlorofluorocarbons (CFCs) in aerosols and other products have thinned this protective layer. Evidence of this is the ozone hole that forms over the South Pole every Antarctic spring as temperatures drop below –78°C, the temperature at which ozone depletion occurs. Measurements of the ozone hole taken at various times this spring show that, compared with the same times the previous year, its area diminished by four million square kilometers. Nevertheless, scientists have not concluded that the ozone layer is recovering.
Which of the following would, if true, provide the strongest reason for the scientists’ reaction to the measurements?
| Line | Critics maintain that the fiction of Herman Melville |
| (1819–1891) has limitations, such as its lack | |
| of inventive plots after Moby-Dick (1851) and its | |
| occasionally inscrutable style. A more serious, yet | |
| (5) | problematic, charge is that Melville is a deficient |
| writer because he is not a practitioner of the “art of | |
| fiction,” as critics have conceived of this art since the | |
| late nineteenth-century essays and novels of Henry | |
| James. Indeed, most twentieth-century commentators | |
| (10) | regard Melville not as a novelist but as a writer of |
| romance, since they believe that Melville’s fiction | |
| lacks the continuity that James viewed as essential | |
| to a novel: the continuity between what characters | |
| feel or think and what they do, and the continuity | |
| (15) | between characters’ fates and their pasts or original |
| social classes. Critics argue that only Pierre (1852), | |
| because of its subject and its characters, is close to | |
| being a novel in the Jamesian sense. | |
| However, although Melville is not a Jamesian | |
| (20) | novelist, he is not therefore a deficient writer. A more |
| reasonable position is that Melville is a different | |
| kind of writer, who held, and should be judged | |
| by, presuppositions about fiction that are quite | |
| different from James’s. It is true that Melville wrote | |
| (25) | “romances”; however, these are not the escapist |
| fictions this word often implies, but fictions that | |
| range freely among very unusual or intense human | |
| experiences. Melville portrayed such experiences | |
| because he believed these best enabled him to | |
| (30) | explore moral questions, an exploration he assumed |
| was the ultimate purpose of fiction. He was content | |
| to sacrifice continuity or even credibility as long | |
| as he could establish a significant moral situation. | |
| Thus Melville’s romances do not give the reader | |
| (35) | a full understanding of the complete feelings and |
| thoughts that motivate actions and events that shape | |
| fate. Rather, the romances leave unexplained the | |
| sequence of events and either simplify or obscure | |
| motives. Again, such simplifications and obscurities | |
| (40) | exist in order to give prominence to the depiction of |
| sharply delineated moral values, values derived from | |
| a character’s purely personal sense of honor, rather | |
| than, as in a Jamesian novel, from the conventions of | |
| society. |