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
58
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, data from the Venus study can be used to______.
选项
A、predict changes in the planet’s orbit
B、predict future agricultural problems on Earth
C、test the efficiency of a spacecraft
D、test a theory about more efficient greenhouse
答案
B
解析
转载请注明原文地址:https://kaotiyun.com/show/3RUC777K
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、Cantheteachermakehimselfeasilyunderstood?B、Howdoestheteacherdealwithstudents?C、Iswhatistaughtnew?D、Arestud
IntheuniversityJimwasafast-tracker.Hemadegoodgradeswithlittleeffort,andhisclassmatesthoughtofhim"mostlikely
Somelocalcompaniesaremakinggreateffortsto______withforeigncompaniesforashareofthemarket.
In1957adoctorinSingaporenoticedthathospitalsweretreatinganunusualnumberofinfluenzalikecases.Influenzaissometi
Theslightest______(care)canresultinaterribleaccident.
Actuallytheumbrellawasnotinventedasaprotectionagainstrain.Itsfirstusewasasaprotectionagainstthesun.
"Happinessconsistsinthemultiplicityofagreeableconsciousness,"wroteSamuelJohnson,afamousBritishwriterandlexicogr
By【B1】______afewsimpletechniques,parentswhoreadtotheirchildrencangreatlyincreasetheirchildren’slanguagedevelopm
Theprogrammerwasalwaysbusyinan______way,spendinghoursaccompanyingnothing.
随机试题
某旧住宅,测算其重置价格为40万元,地面、门窗等破旧引起的物质折旧为3万元,因户型设计不好、没有独用厕所和共用电视天线等导致的功能折旧为8万元,由于位于城市衰落地区引起的经济折旧为7万元,该旧住宅的折旧现值为()万元。
随着时间的延长,钢材内部性质略有改变,称为时效,俗称“老化”。“时效”的后果是()。
根据项目后评价报告基本格式,“报告正文”提纲应包括()。
下列关于投资项目经济评价中盈亏平衡分析的说法,正确的是()
和谐社会是中国共产党领导下全体人民共建共享的社会。()
你单位要进行一次全市食品安全检查工作。如果让你做一个工作计划,你怎么做?
A、 B、 C、 D、 C观察给出的每一组图案,均分别由三个独立的小图构成,符合这一规律的只有C。
从教育科学的某一理论或一般性陈述出发推出新结论,推论出某特定假设。这种假设属于()
Ithasbeenjustlysaidthatwhile"wespeakwithourvocalorganswe(1)_____withourwholebodies".Allofuscommunicatewit
ToAmericans,politeconversationalistsempathizebydisplayingexpressionsofexcitementordisgust,shockorsadness.(Passage
最新回复
(
0
)