首页
登录
职称英语
Acid rain, which is a form of air pollution, currently becomes a subject of
Acid rain, which is a form of air pollution, currently becomes a subject of
游客
2024-01-31
58
管理
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 (硫) 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. [br] The second paragraph is mainly about_________.
选项
A、the origin of acid rain
B、the cause of acid rain
C、the formation of acid rain
D、the widespread damage of acid rain
答案
D
解析
由题干中“The second paragraph is mainly about”可以定位到文中第二段。该段通过列举酸雨对北欧、德国黑森林、美国东北部和加拿大东部的危害证明了酸雨造成的大范围的破坏。
转载请注明原文地址:http://tihaiku.com/zcyy/3409677.html
相关试题推荐
Acidrain,whichisaformofairpollution,currentlybecomesasubjectof
Acidrain,whichisaformofairpollution,currentlybecomesasubjectof
Itwasoncethoughtthatairpollutionaffectedonlytheareaimmediatelyar
Itwasoncethoughtthatairpollutionaffectedonlytheareaimmediatelyar
Itwasoncethoughtthatairpollutionaffectedonlytheareaimmediatelyar
Searchingforloveisnolongerjustafavoritesubjectforsongs.Ithasal
Searchingforloveisnolongerjustafavoritesubjectforsongs.Ithasal
Searchingforloveisnolongerjustafavoritesubjectforsongs.Ithasal
Searchingforloveisnolongerjustafavoritesubjectforsongs.Ithasal
Searchingforloveisnolongerjustafavoritesubjectforsongs.Ithasal
随机试题
ProperstreetbehaviorintheUnitedStatesrequiresanicebalanceofatten
下列级数发散的是()。
影响血沉测定的因素不包括A.血沉管是否干净 B.血沉管内径 C.血沉管垂直竖
下列关于扣件式钢管脚手架的结构要求中,说法错误的是( )。A.冲压钢脚手板、木
施工现场消防器材配备正确的有()。A、临时搭设的建筑物区域内100平米配备2只1
患者,男,24岁。近3年来反复餐后3~4小时上腹痛,持续至下次进餐后才缓解。应首
著作权包括以下人身权和财产权:发表权、署名权、网络传播权、应当有著作权人等拥有的
下列哪项不是霍华德田园城市的内容?( )A.每个田园城市的规模控制在3.2万人
对一种产品的A、B、C三类不合格特性分别进行抽样验收,对C类不合格特性的检测是
下列关于投标保证金的说法,正确的是()。A.投标保证金有效期应当与投标有效
最新回复
(
0
)