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
Scientists claim that air pollution causes a decline in the world’ s average air temperature. In order to prove that theory, eco
Scientists claim that air pollution causes a decline in the world’ s average air temperature. In order to prove that theory, eco
admin
2011-01-26
49
问题
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, Tambora threw 150 million ton of fine ash into the stratosphere. The ash from a volcano spreads worldwide in a few days and remains in the air for years. Its effect is to turn in coming solar radiation into space and thus cool the earth. For example, records of weather in Eng land show that between April and November 1815, the average temperature had fallen 4.5°F during the next twenty-four months, England suffered one of the coldest periods of its history. Farmers’ re cords from April 1815 to December 1818 indicate frost throughout the spring and summer and sharp decreases in crop and livestock markets. 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 eruptions, 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.
According to the passage, which of the following is NOT the cause of dropping temperatures?
选项
A、Volcanic eruptions
B、Mountain torrents
C、Crop and livestock production
D、The floods after the storm
答案
C
解析
选项C是气温下降的结果,而不是原因。
转载请注明原文地址:https://kaotiyun.com/show/5BBO777K
0
考博英语
相关试题推荐
•Lookatthechartbelow.Itshowstheaveragesharepricesofeachmonthofthreecompaniesduringaneight-monthperiod.•
Inspiteofperformingbetterthanthesectoraverageformostoftheweek,thiscompany’sshareslostthisadvantageonFriday.
Thecompany’sturnoverdecreasedsteadilybetween2000and2002whereasitsprofitdeclinedslightlybeforestartingtorecover.
Lookatthegraphsbelow.Theyshowunemploymentineightdifferentregionscomparedtothenationalaverage.Whichregiondoes
Lookatthegraphsbelow.Theyshowunemploymentineightdifferentregionscomparedtothenationalaverage.Whichregiondoes
Lookatthegraphbelow.Itshowstheaveragesharepricesofthreecompanies-GrantInternational,HDCUnionandtheLindelGr
ThemilitaryaspectoftheUnitedStatesCivilWarhasalwaysattractedthemostattentionfromscholars.Theroarofgunfire,t
ThemilitaryaspectoftheUnitedStatesCivilWarhasalwaysattractedthemostattentionfromscholars.Theroarofgunfire,t
Realpolicemen,bothBritainandtheUnitedStateshardlyrecognizeanyresemblancebetweentheirlivesandwhattheyseeonTV
随机试题
我国的社会主义发展战略只注重了经济的发展,而忽视了社会的综合发展。
关于植皮术的叙述,错误的是
台儿庄战役是中国军民在()战争中第一次空前的胜利,史称“台儿庄大捷”。
下列寻址方式中,()方式需要先计算,再访问主存。
(单选题)我们要把改革创新精神贯彻到治国理政的各个环节,毫不动摇地坚持改革方向,()。
有一种理论认为,证券市场在走向成熟时会使市场参与者的赢利趋向平均化,但是我们知道几乎国内外所有证券市场的价格都存在一定程度的扭曲。如果用更通俗的语言来表述,就是市场永远不会走到真正成熟的那一天,股票价格的定位根本不能用所谓理性的计算来获得。所以,我们将无法
传说中开天辟地、炼石补天、衔石填海的神话人物依次是:
锐进软件股份有限公司是一个由四个子公司,即甲、乙、丙、丁组成的总公司。在总公司的利润方案下,每个子公司承担的利润份额与每年该子公司员工占锐进软件股份有限公司总员工数的份额相等。但是去年该公司的财务报告却显示,甲公司在员工数量增加的同时向总公司上缴利润的比例
关于ARM处理器异常中断响应过程中,以下说法正确的是()。
有两个关系R,S如下:由关系R通过运算得到关系S,则所使用的运算为( )。
最新回复
(
0
)