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
Acid rain, which is a form of air pollution, currently becomes a subject of great debate because of widespread environmental dam
Acid rain, which is a form of air pollution, currently becomes a subject of great debate because of widespread environmental dam
admin
2013-11-21
98
问题
Acid rain, which is a form of air pollution, currently becomes a subject of great debate because of widespread environmental damage for which it has been blamed. It forms when oxides of sulfur(梳)and nitrogen(氮)combine with atmospheric moisture to yield sulfuric and nitric acids, which may then be carried long distances from their source before they drop in the form of rain. The pollution may also take the form of snow or fog or fall down in dry forms. In fact, although the term "acid rain" has been in use for more than a century — it is derived from atmospheric studies that were made in the region of Manchester, England — the more accurate scientific term would be "acid deposition". The dry form of such deposition is just as damaging to the environment as the liquid form.
The problem of acid rain originated with the Industrial Revolution, and it has been growing ever since. The severity of its effects has long been recognized in local settings, as exemplified by the spells of acid smog in heavily industrialized areas. The widespread destructiveness of acid rain, however, has become evident only in recent decades. One large area that has been studied extensively is northern Europe, where acid rain has eroded structures, injured crops and forests, and threatened life in freshwater lakes. In 1984, for example, environmental reports indicated that almost half of the trees in Germany’s Black Forest had been damaged by acid rain. The northeastern United States and eastern Canada have also been particularly affected by this form of pollution. Damage has also been detected in other areas of these countries and other regions of the world.
Industrial emissions have been blamed as the major cause of acid rain. Because the chemical reactions involved in the production of acid rain in the atmosphere are complex and as yet little understood, industries have tended to challenge such assessments and to stress the need for further studies and because of the cost of pollution reduction, governments have tended to support this attitude. Studies released by the USA government in the early 1980s, however, strongly indicated industries as the main source of acid rain, in the eastern USA and Canada.
According to the passage, acid fog______.
选项
A、falls down when the atmosphere is moist
B、is not as frequent as acid rain
C、often falls in the region of Manchester, England
D、is as damaging as acid rain
答案
D
解析
推理题。根据关键词acid fog定位第一段最后一句The dry form of such deposition is just as damaging to the environment as the liquid form,干性的酸性沉积对环境的破坏作用与液体形式的沉积一样大。这里所说的“固态”形式指上文提到的酸雾、酸雪等。故答案为D项。
转载请注明原文地址:https://kaotiyun.com/show/RtS7777K
0
大学英语四级
相关试题推荐
A、Shehasapart-timejob.B、Shereceivedascholarship.C、Herparentspayforit.D、Sheisworkingasatouristguide.B选项都与经济来
Eachday,50,000shiny,fireengineredapplesworktheirwaythroughasprawlingfactoryinSwedesboro,N.J.Inside,26machines
A、Secretaryandboss.B、Clientandlawyer.C、Studentandteacher.D、Patientandnurse.C
Thespeechplatformwas______inthemarketsquare,fromwhichthespeakersaddressedtheassembledcrowd.
Youngpeopleareoftentoldbytheirteacherthatinthefaceofdifficulties____________(要独立思考)
Forthispart,youareallowed30minutestowriteashortessayentitledShouldWeGiveGiftstoTeachersonTeachers’Day?You
A、Humanbrainsdifferconsiderably.B、Thebrainapersonisbornwithisimportantindetermininghisintelligence.C、Anenviron
Throughouthistorythebasicunitofalmosteveryhumansocietyhasbeenthefamily.Membersofafamilylivetogetherunderthe
Eventhemostcommittedsinglepersonoccasionallyfeelsalone.Buttheyneverresenttheirlifestyle.Theadvertisementfor
随机试题
设函数f(x)具有连续的导数,则()
Thespacecraft______theearththreetimes.
欲研究新法接生是否能减少新生儿窒息的发生率,选择某市级医院为试验组,进行新法接生,选择某县级医院为对照组,用常规方法接生,该方案
(共用备选答案)A.处方调剂B.治疗药物的监测C.参与健康教育D.药物利用研究和评价E.药物不良反应监测和报告确定药物利用的指数
批准的()是项目投资控制总目标。
甲公司和乙运输公司签订运输合同,约定,甲公司按时向乙公司交付所要运输的货物,并支付运费。乙公司准时将货物运输至目的地。其中的法律关系是()。
近期某地发生了3人落水死亡事件,遇难者家属在网上发帖指责海事局不作为,其他网友纷纷转载跟帖。你是海事局宣传部的工作人员,领导让你来处理这件事,你怎么办?
在智利环境恶劣的北部沙漠地区的卡玛罗纳斯谷,人们发现了世界上一些最为古老的小乃伊,即Chinchorro人的木乃伊。木乃伊毛发分析结果显示,砷含量都很高。砷这种金属元素在卡玛罗纳斯谷以及周围火山坡较为常见,砷被季节性融雪水冲入河流,而河流正是牛活在下游的人
简述传播淫秽物品牟利罪的构成要件。
Georgehadstolensomemoney,butthepolicehadcaughthimandhehadbeenputinprison.Nowhistrialwasabouttobegin,and
最新回复
(
0
)