首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
A、England’s proximity’ to the sea. B、Volcanic ash in the atmosphere. C、Flooding in the area. D、Pollution caused by the Internati
A、England’s proximity’ to the sea. B、Volcanic ash in the atmosphere. C、Flooding in the area. D、Pollution caused by the Internati
admin
2010-09-25
61
问题
(26)Scientists claim that air pollution causes a decline in the world’s average air temperature. In order to prove that theory, ecologists have turned to historical data in relation to especially huge volcanic eruptions. They suspect that volcanoes effect weather changes that are similar to air pollution.
One source of information is the effect of the eruption of Tambora, a volcano in Sumbawa, the Dutch East Indies the former name of the Republic of Indonesia in April 1815. The largest recorded volcanic eruption, (27)Tombora threw 150 million tons of fine ash into the sky. The ash from a volcano spreads worldwide in a few days and remains in the air for years. Its effect is to turn incoming solar radiation into space and thus cool the earth. For example, records of weather in England show that between April and November 1815, the average temperature had fallen 4.5F. During the next twenty-four months, England suffered one of the coldest periods of its history. Farmers’ records from April 1815 to December 1818 indicate frost throughout the spring and summer and sharp decreases in crop and livestock markets. (28)Since there was a time lag of several years between cause and effect, by the time the world agricultural commodity community had deteriorated, no one realized the cause.
Ecologists today warn that we face a twofold menace. The ever-present possibility of volcanic eruption, such as that of Mt. St. Helens in Washington, added to man’s pollution of the atmosphere with oil, gas, coal, and other polluting substances, may bring us increasingly colder weather.
选项
A、England’s proximity’ to the sea.
B、Volcanic ash in the atmosphere.
C、Flooding in the area.
D、Pollution caused by the International Revolution.
答案
B
解析
文中明确指出由于火山爆发,将大量火山灰喷到空中,火山灰在大气中停留了几年,将阳光折射回太空,从而导致地球的气温降低,故选择B。
转载请注明原文地址:https://kaotiyun.com/show/uVz7777K
0
大学英语六级
相关试题推荐
A、Socialactivities.B、Culturalactivities.C、Languageactivities.D、Sportsactivities.C四个选项内容都包含在俱乐部活动中,但女士听完介绍后特别针对languagea
ABriefHistoryofAmericanAnti-SmokingCampaignsTheFirstAnti-SmokingTreatiseTobaccoisanativeAmericanplantth
A、Paintalandscape.B、Giveanoralreport.C、Takeafinalexam.D、Buyseveralbooks.B事实细节题Martin博士谈到她的这门课没有期末考试,但是到学期末每个同学需要做
Tobetterunderstandthenegotiationpracticesofothercultures,itisimportantforustobeawareofthestandardnegotiation
A、Atabookstore.B、Inaworkshop.C、Atanartgallery.D、Inadepartmentstore.C
It’saroughworldoutthere.Stepoutsideandyoucouldbreakalegslippingonyourdoormat.Lightupthestoveandyoucould
A、Atravelagent.B、Acustomsofficer.C、Apolicewoman.D、Abankclerk.D
Weareallnaturallyattractedtopeoplewithideas,beliefsandinterestslikeourown.Similarly,wefeelcomfortablewithpeo
Therecentgrowthofexportsurplusesontheworldfoodmarkethascertainlybeenunexpectedlygreat,partlybecauseastranges
Theimportanceofandfocusontheinterviewintheworkoftheprintandbroadcastjournalistisreflectedinseveralbookstha
随机试题
下列哪一项符合慢性脓性骨髓炎临床特征()
A.近肺门区B.肺尖C.肺下野D.肺中野E.上叶下部、下叶上部原发性肺结核肺部原发灶多位于
施工现场合理的()是达到安全防火要求的重要措施之一。
甲建筑施工单位为能在市政府办公楼项目招标中中标,以投资考察的名义,安排市主管领导及家属赴欧洲旅游,并在国外为其购买了贵重纪念品,共花费人民币近50万元。
某地区原费用定额测算所选典型工程材料费占人工费、材料费和机械费合计的比例为30%,该地区的某施工项目的某分项工程中的直接工程费仅为人工费,且直接工程费为600万元,按该分项工程中的人工费计算的间接费费率为50%,利润率为10%,则该分项工程的不含税造价为(
对于截止审计报告日被审计单位仍未披露的重大或有损失,注册会计师下列做法恰当的是()。
京剧的花脸所属的行当是()。
行为主义学习理论的代表人物是()。
阅读下面的文字,回答下列几题。基础研究的地位在不断提升,随着世界政治多元化和经济全球化的日益发展,以科学技术为核心的研究明显地迁移到了基础研究方面来,基础研究对技术成果的开发就具有了突出的战略意义。最近,一些国家出现了新的颇为耐人寻味的形象。英
为避免大型项目中多个项目之间出现资源冲突,较有效的做法是()。
最新回复
(
0
)