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
Not only could Smith identify rock strata by the fossils they contained, he could also see a pattern emerging: certain fossils a
Not only could Smith identify rock strata by the fossils they contained, he could also see a pattern emerging: certain fossils a
admin
2014-09-29
23
问题
Not only could Smith identify rock strata by the fossils they contained, he could also see a pattern emerging: certain fossils always appear in more ancient sediments, while others begin to be seen as the strata become more recent. By following the fossils, Smith was able to put all the strata of England’s earth into relative temporal sequence. About the same time, Georges Cuvier made the same discovery while studying the rocks around Paris. Soon it was realized that this principal of faunal(animal)succession was valid not only in England or France but
virtually
everywhere. It was actually a principle of floral succession as well, because plants showed the same transformation through time as did fauna. Limestone may be found in the Cambrian or—300 million years later—in the Jurassic strata, but a
trilobite
—the ubiquitous marine arthropod that had its birth in the Cambrian—will never be found in Jurassic strata, nor a dinosaur in the Cambrian.
In mentioning "
trilobite
," the author is making which of the following points?
选项
A、Fossils cannot be found in more than one rock stratum.
B、Faunal succession can help put rock layers in relative temporal sequence.
C、Faunal succession cannot be applied to different strata composed of the same kind of rock.
D、The presence of trilobite fossils makes it difficult to date a rock.
答案
B
解析
转载请注明原文地址:https://kaotiyun.com/show/fHfO777K
0
托福(TOEFL)
相关试题推荐
Completetheformbelow.WriteONEWORDAND/ORANUMBERforeachanswer.
Choosethecorrectanswer,A,BorC.ProjectonworkplacementHowmanyacademicorganisationsreturnedDave’squestionnaire?
Labeltheplanbelow.WriteNOMORETHANTHREEWORDSforeachanswer.PlanoftheBritishLibrary
Choosethecorrectletter,A,BorC.Thelecturewasorganisedby
CompletethenotesbelowWriteONEWORDONLYforeachanswer.TheGherkinBuildingCommissionedby:【L31】______firmcalledFoste
Choosethecorrectletter,A,BorC.WhyshouldJohngiveacopyofplanstotheprofessor?
Listentothedirectionsandmatchtheplacesinquestions11-15totheappropriateplaceamongA-Eonthemap.Cafe
Completethenotesbelow.WriteNOMORETHANTHREEWORDSforeachanswer.GIVINGASPEECHReasonsfornervousnessLecturersofte
Whatproblemsdothespeakersidentifyforthisproject?ChooseSEVENanswersfromtheboxandwritetheletters,A-H,nexttoq
Completethenotesbelow.WriteONEWORDONLYforeachanswer.Episodicmemory-theabilitytorecalldetails,e.g.thetimeand
随机试题
防止输液时发生空气栓塞的有效措施是()。
某项目主力户型以三居室为主,对于本区域而言面积偏大,这一条件在SWOT矩阵中应为()条件。
红星建筑工程公司委托其业务员甲某外出采购水泥,甲某以红星建筑工程公司的名义与乙公司签订一份钢材购销合同,下列说法正确的是()。
从世界范围来考察,证券交易所未来的发展方向将会是()
在欧洲,中东欧国家长期被视为经济社会发展的“第二梯队”——体量小、起步晚、成长不平衡。但近年来,中东欧国家的自身优势逐渐显现,成为西欧制造业转型升级的主要承接地。在制造业的带动下经济发展踏上了快车道。例如在欧盟失业率最低的捷克,约有35%的劳动力从事制造业
学生的社会地位属于学生的()问题。
父母对喜欢哭闹的孩子采取故意不理会的方式,这是一种()。
义务教育是为高一级学校输送优质生源的教育。()
已知函数f(x)在区间[0,2]上可积,且满足,则函数f(x)的解析式是
SuccessfulWaysofCommunicationCommunicationmeans:【B1】speaking______andwritingAneffectivecommunicatorisgoodat:【B2】__
最新回复
(
0
)