tailieunhanh - Toefl ibt internet based test 2006 - 2007 part 54

Tham khảo tài liệu 'toefl ibt internet based test 2006 - 2007 part 54', ngoại ngữ, toefl - ielts - toeic phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | 366 MORE MODEL TESTS Sea-level rise must be expressed as a range of values that are under constant reassessment. LS The 2001 IPCC forecast for global mean sea-level rise this century given regional variations is from m. 3 The median value of m is two to four times the rate of previous increase. These increases would continue beyond 2100 even if greenhouse gas concentrations are stabilized. Q The Scripps Institute of Oceanography in La Jolla California has kept ocean temperature records since 1916. Significant temperature increases are being recorded to depths of more than 300 m as ocean temperature records are set. Even the warming of the ocean itself will contribute about 25 of sealevel rise simply because of thermal expansion of the water. In addition any change in ocean temperature has a profound effect on weather and indirectly on agriculture and soil moisture. In fact the ocean system appears to have delayed some surface global warming during the past century through absorption of excess atmospheric heat. - A quick survey of world coastlines shows that even a moderate rise could bring changes of unparalleled proportions. At stake are the river deltas lowland coastal farming valleys and low-lying mainland areas all contending with high water high tides and higher storm surges. Particularly tragic social and economic consequences will affect small island states being able to adjust within their present country boundaries disruption of biological systems loss of biodiversity reduction in water resources among the impacts. There could be both internal and international migration of affected human populations spread over decades as people move away from coastal flooding from the sea-level rise. 1. The word confirm in the passage is closest in meaning to D clarify D prove CD assume CD predict 2. There is more new plant life in Antarctica recently because CD the mountain glaciers have melted CD the land masses have split into islands the icebergs have