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
2023-07-04
39
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(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. [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
转载请注明原文地址:https://tihaiku.com/zcyy/2808522.html
相关试题推荐
Acidrain,whichisaformofairpollution,currentlybecomesasubjectof
Acidrain,whichisaformofairpollution,currentlybecomesasubjectof
Itwasoncethoughtthatairpollutionaffectedonlytheareaimmediatelyar
Itwasoncethoughtthatairpollutionaffectedonlytheareaimmediatelyar
Itwasoncethoughtthatairpollutionaffectedonlytheareaimmediatelyar
Itwasoncethoughtthatairpollutionaffectedonlytheareaimmediatelyar
Environmentalpollutionisatermthatreferstoallthewaysbywhichhuman
Environmentalpollutionisatermthatreferstoallthewaysbywhichhuman
Environmentalpollutionisatermthatreferstoallthewaysbywhichhuman
Environmentalpollutionisatermthatreferstoallthewaysbywhichhuman
随机试题
Themostwell-knownportraitofawomanintheworldisoverthemoonlitera
MA一个极大的弱点在于()。A、趋势追逐性B、滞后性C、稳定性D、助涨助跌性B滞后性是MA的一个极大的弱点。
EducationStudyFindsU.S.FallingBehindA)TeachersintheUni
空肠弯曲菌选择性培养最适宜的温度是A:30℃B:35℃C:37℃D:40℃
心理过程不包括()。A.认识过程 B.情感过程 C.理解过程 D.意志
可明确胃溃疡部位、并可经活检做病理及幽门螺杆菌检查的辅助检查方法是A.血清学检查
悲观原则是()。A:大中取小法 B:小中取大法 C:大中取大法 D:小中取
下列关于存货的表述中,正确的是()。A.存货采购过程中发生的损耗,在发现当期直
在下列钢产品中,常用于铸造阀门的阀体原材料是( )。A.液态钢 B.铸铁 C
项目实施的工作项编码,是对项目实施的工作过程的编码,应覆盖()。A.项目施工全
最新回复
(
0
)