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
专升本
Data from the pioneer spacecraft of the National Aeronautics and Space Administration(NASA)apparently prove the theory that the
Data from the pioneer spacecraft of the National Aeronautics and Space Administration(NASA)apparently prove the theory that the
admin
2014-12-09
67
问题
Data from the pioneer spacecraft of the National Aeronautics and Space Administration(NASA)apparently prove the theory that the searing 900-degree Fahrenheit surface temperature of Venus is due to an atmospheric greenhouse effect caused mainly by a blanket of carbon dioxide. Such a greenhouse effect is created when energy in the form of sunlight easily passes through a planet’s atmosphere, warms its surface, and is converted to heat radiation that is then held in by the atmosphere. The orbiting spacecraft sampled Venus’ atmosphere from top to bottom, enabling NASA’s scientists to establish the exact amount of sunlight absorbed at various places in the planet’s atmosphere and on its surface.
Measurements of atmosphere composition, temperature profiles(变化曲线), and radiative heating predicted Venus’ surface temperature very accurately. The planet is closer to the Sun than is Earth, and it has a relatively thin atmosphere like Earth’s, but Venus’ atmosphere consists of more than ninety percent carbon dioxide, compared to less than four percent in that of Earth. Because of its higher percentage of carbon dioxide, Venus’ atmosphere traps much more heat radiation than does Earth’s. Thus, the Venus researches are believed to be important to the understanding of possible adverse(不利的)effects on Earth’s agriculture and sea levels that could result from the long-term use of fossil fuels, which add carbon dioxide to the atmosphere.
According to the passage, how does the atmosphere of Venus differ from that of Earth?
选项
A、It contains much more carbon dioxide.
B、It holds significantly less moisture.
C、It is four percent thinner.
D、It traps less heat radiatioa
答案
A
解析
转载请注明原文地址:https://kaotiyun.com/show/kRUC777K
本试题收录于:
英语题库普高专升本分类
0
英语
普高专升本
相关试题推荐
Lifeisnoteasy,soI’dliketosay"Whenanythinghappens,believeinyourself."WhenIwasayoungboy,Iwas【31】shytotalk
A、Doubtfulyetlongingfor.B、Surprisedandverypleased.C、Happyandratherconfident.D、Disappointedanddeeplyworried.D细节题。
Acollegeoruniversity’sinternationalstudentofficeisagoodplace【31】gettingtoknowtheschoolandthecountry.Let’s【32】s
______yourbook,anddothisworkfirst.Youmayreaditlater.
______tomorrow,hewouldbeabletoseetheopeningceremony.
Everylandhasitsowndiningcustom,andtheUnitedStatesisnoexception.
A、decisionB、conclusionC、discussionD、occasionC
Ifound______impossiblefor_____toworkoutthemathsproblem.
Theresultswereto______yesterday,butwehaveheardnothing.
没人想交一个没有个性的朋友!
随机试题
Iwon’tbemodest.IamgratifiedtodiscoverthatapaperIpennedoninequalitymadeitswayintoMattMiller’sWashingtonPos
以天然气或轻烃为原料,通常采用何种制气方法?
矛盾的斗争性是无条件的、绝对的,是说斗争性不需要任何条件。()
A.阻止毒物继续进人入体内,促使毒物排泄以及拮抗或解除其毒作用B.缓解毒物引起的主要症状,以促进入体功能的恢复C.提高患者抗病能力,促使早日恢复健康D.降低车间空气中毒物浓度E.加强个人防护和个人卫生病因治疗是
在可行性研究中,主要根据()的结果,以及有关的产业政策等论证项目投资建设的必要性。
采暖管道的安装,管径大于32mm宜采用()。
背景资料:A公司承包了东北某新建炼油厂的压缩机站机电安装工程,要求年底竣工。8台H型工艺气往复压缩机安装结束后,拟对压缩机进行单机调试,并由项目总工程师编制了用空气为介质的单机试运转方案报建设单位审批后,施工单位主持,建设单位参加单机试运工作。由
ShouldanyonemuchcarewhetheranAmericanboylivingoverseasgetssixviciousthwacksonhisbackside?Somuchhasbeenargue
Europe’sgovernmentsareslammingthelastdoorstillopenforso-calledeconomicmigrantsfrompoorcountries.Throughoutthel
WritingBasedonReadingandListeningDirections:Forthistask,youwillreadapassageaboutanacademictopicandyo
最新回复
(
0
)