Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 31 to 35. The Chacaltaya ski area in Bolivia used to be the highest in the world. Although it was less than a kilometer long, it hosted international ski competitions. Today the snow has almost gone, and so have Chacaltaya’s days as a popular ski resort. The ski area sits upon a small mountain glacier, which was already getting smaller when the ski ...
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05/09 22:33:39 (Tiếng Anh - Lớp 12) |
Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 31 to 35.
The Chacaltaya ski area in Bolivia used to be the highest in the world. Although it was less than a kilometer long, it hosted international ski competitions. Today the snow has almost gone, and so have Chacaltaya’s days as a popular ski resort.
The ski area sits upon a small mountain glacier, which was already getting smaller when the ski area opened in 1939. In the past ten years, however, the glacier has been melting at an increased rate. As the glacier melts, dark rocks beneath it are uncovered. The sun then heats the rocks, causing faster melting. Despite attempts to make snow with snow machines, this cycle seems unstoppable in the long run.
As experts debate how to solve the global warming problem, ice in mountains such as Chacaltaya and near the North and South Poles is melting faster than even the most pessimistic? environmentalists may have once feared. Rising air and sea temperatures are two well-known causes, but researchers have recently discovered other unexpected processes that take place as glaciers melt. The effects are having an impact on humans even now, and they could change the face of the world in the future.
The glaciers of the Himalayas and the Andes? could disappear in this century. As a result, the millions of people in India, Bolivia, and Peru who now depend on melting water from mountain glaciers could find themselves in a critical situation. The ice sheet of Greenland is also melting more quickly than scientists predicted. Greenland’s largest outlet glacier, the Jacobshavn Isbra glacier, is moving toward the sea twice as fast as it was in 1995. One cause could be meltwaters that runs down to the bottom of the glacier and gets between the ice and the rock below. This water makes it easier for the glacier to slide along to the ocean.
Many ice researchers believe that Greenland’s melting, if it continues, will add at least three feet to global sea levels by the year 2100. If the ice sheet of Antarctica, now largely unaffected, begins to melt, the next few centuries could see a six-foot rise in sea levels, forcing tens of millions of people out of their homes.
What is the best title of the passage?
Lựa chọn một trả lời để xem Đáp án chính xác Báo sai đáp án hoặc câu hỏi |
A. Melting glaciers and the implications for the world. 0 % | 0 phiếu |
B. The global warming problem, ice in mountains in Bolivia. 0 % | 0 phiếu |
C. The glaciers of the Himalayas and the Andes could disappear in this century. 0 % | 0 phiếu |
D. Greenland’s melting continues by the year 2100. 0 % | 0 phiếu |
Tổng cộng: | 0 trả lời |
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