首页
登录
职称英语
Observations of the Arctic reveal that the Arctic Ocean is covered by less ice e
Observations of the Arctic reveal that the Arctic Ocean is covered by less ice e
游客
2024-01-11
43
管理
问题
Observations of the Arctic reveal that the Arctic Ocean is covered by less ice each summer than the previous summer. If this warming trend continues, within 50 years the Arctic Ocean will be ice free during the summer months. This occurrence would in itself have little or no effect on global sea levels, since the melting of ice floating in water does not affect the water level. However, serious consequences to sea levels would eventually result, because______.
Which of the following most logically completes the passage?
选项
A、large masses of floating sea ice would continue to form in the wintertime
B、significant changes in Arctic sea temperatures would be accompanied by changes in sea temperatures in more temperate parts of the world
C、such a warm Arctic Ocean would trigger the melting of massive land-based glaciers in the Arctic
D、an ice-free Arctic Ocean would support a very different ecosystem than it does presently
E、in the spring, melting sea ice would cause more icebergs to be created and to drift south into shipping routes
答案
C
解析
To logically complete the passages open-ended "because," something is needed that will explain why the continuation of the warming trend would have serious consequences for sea levels. The passage explains that the melting of the Arctic Ocean ice will not affect sea levels because the contribution that the water contained in that ice makes to sea levels is the same whether the water is frozen or liquid. But Choice C points to a way in which increasing temperatures in the Arctic could add water to the ocean, namely by melting ice on the land. So Choice C logically completes the passage and is the correct answer.
Given that the passage has already explained that melting sea ice does not affect sea levels, the formation of sea ice described in Choice A does not explain why there would be consequences for sea levels.
Choices B, D, and E all describe possible consequences of increased temperatures in the Arctic, but none of these consequences suggests a mechanism by which sea levels would change. So none of these options provides a logical completion for the passage.
转载请注明原文地址:https://tihaiku.com/zcyy/3351950.html
相关试题推荐
A、Alesser-knownauthorisdiscoveredtohaveinfluencedamorefamousone,and
Like______,ArcticscientistssequesteredonthePolemustaccustomthemselvest
Scientistsresearchinghypnosishaveuncoveredevidencethatcounte
Scientistsresearchinghypnosishaveuncoveredevidencethatcounte
Scientistsresearchinghypnosishaveuncoveredevidencethatcounte
Scientistsresearchinghypnosishaveuncoveredevidencethatcounte
Scientistsresearchinghypnosishaveuncoveredevidencethatcounte
SUBVERT:A、amplifyB、stabilizeC、substituteD、superviseE、revealB
Since1875,whenAlexanderGrahamBellfirstdiscoveredhowtosendthehumanvo
Arcticseaicecomesintwovarieties.Seasonaliceformsinwinterandthenmel
随机试题
BiddingforContributions1.Thismagazineismainlyin
Properarrangementofclassroomspaceisimportanttoencouraginginteracti
WhatcanwelearnaboutPeterfromtheconversation.’?[br][originaltext]M:My
Hehasbeenlookingeverywhereforyouandhestill______.A、doesB、hasbeenC、h
[originaltext]W:Okay.Mr.Smith.(12)Let’sbeginyourroadtestM:Oh.Iknow
A.近球小管 B.髓袢降支 C.髓袢升支 D.远曲小管和集合管 E.输尿
甲公司以950万元发行面值为1000万元的可转换公司债券,其中负债成分的公允价值
按编制对象不同,施工组织设计的三个层次是指()。A.施工组织总设计、单位工程施工
某项内部开发的无形资产达到资本化条件后发生的支出是100万元,另发生无形资产注册
A.单萜B.三萜C.二萜D.倍半萜E.都不是穿心莲内酯是
最新回复
(
0
)