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 leads to fish mortality. Many species of fish cannot survive in aquatic environments where the pH is below 5.0. If the
Acid rain leads to fish mortality. Many species of fish cannot survive in aquatic environments where the pH is below 5.0. If the
admin
2013-01-28
26
问题
Acid rain leads to fish mortality. Many species of fish cannot survive in aquatic environments where the pH is below 5.0. If the water is too acid, the gill systems of many kinds of fish can be damaged.【21】, the acid alters the blood chemistry of all fish. As a result, the fish population in an acidic environment decreases【22】becomes extinct.
Approximately 20 percent of the lakes in Scandinavia are without fish. Moreover, in Nova Scotia the【23】salmon industry may be threatened by the decrease of salmon in rivers and streams. The impact is also【24】in the waters of Ontario and Quebec, where fish populations are【25】the decline.
What potential remedies exist for the acid rain【26】? The experts disagree. Some say new environmental laws should be【27】to control the emission of pollutants in the atmosphere. Some say that if we had known how serious acid rain was, we would have planned【28】to prevent it.【29】, all agree that if the consumption of fossil fuel were reduced, we would have less of a problem. Another【30】is that special scrubbers could be installed in smokestacks to remove a good【31】of the pollutants before they get into the atmosphere. Other ideas even include breeding more【32】fish. And research suggests that spreading lime into lakes may be effective in【33】acidity. In conclusion, it is clear that if we truly want to reduce the impact of acid rain, a【34】of remedies and international cooperation must be explored. It is a sad fact that acid rain probably could have been avoided if we【35】what we know now.
选项
A、possibility
B、perspective
C、occurrence
D、opportunity
答案
A
解析
转载请注明原文地址:https://kaotiyun.com/show/P31O777K
0
考博英语
相关试题推荐
WithoutwaterfromtheNileRiver,Egypt____afarmingcountryandbecomeadesert.
OnesillyquestionIsimplycannottolerateis"Howdoyoufeel?"Usuallythequestionisaskedofamaninaction-amanwalkin
TheEuropeanUnionrevealedonJanuary23rdhowitplanstosavetheworld.Amammothclimate-changeplanspellsoutindetailh
Businessisimprovingbutmuchmorehardworkandcommonsensewillbe______beforeanysubstantialprofitscanberealized.
Throughouthistorymanhashadtoacceptthefactthatalllivingthingsmustdie,butpeoplenowlivelongerthanthey【51】Yet,
PriscillaOuchida’s"energy-efficient"houseturnedouttobeahorribledream.Whensheandherengineerhusbandmarriedafew
PriscillaOuchida’s"energy-efficient"houseturnedouttobeahorribledream.Whensheandherengineerhusbandmarriedafew
Amonghumans,theeffectsofagingvaryfromoneindividualtoanother.Theaveragelife______forAmericansisaround75years
Onewayofimprovingone’swritingistogetintothehabitofkeepingarecordofyourobservations,ofstoring【71】inanoteboo
随机试题
在初期生油阶段,沉积物埋藏很深时,细菌比较发育,有机质在细菌的作用下发生分解,生成大量气态物质。()
天然气总热值质量标准是()MJ/m3。
局麻药的作用机理是
仲裁协议是采取仲裁方式解决争议的前提条件,这体现了仲裁制度的()。
【背景资料】某房屋建筑工程,建筑面积6800m2,钢筋混凝土框架结构,外墙外保温节能体系。根据《建设工程施工合同(示范文本)》GF一2013一0201和《建设工程监理合同(示范文本)》GF一2012—0202,建设单位分别与中标的施工单位和监理单位签订了施
()常建于河流中、上游的高山狭谷中,一般为中、高水头水电站。
用来安排生产作业计划,确定和考核工人的任务量的劳动定额种类是()。
职务与职位的主要区别不包括()。
HowtoGetAlongWellWithYourBoss1Beforeyouarguewithyourboss,checkwiththeboss’ssecretarytodeterminehismo
OneworddescribeswhatmakesSingaporework:discipline.
最新回复
(
0
)