首页
登录
职称英语
As he collected fossils from strata throughout England, Smith began to see t
As he collected fossils from strata throughout England, Smith began to see t
游客
2024-01-03
39
管理
问题
As he collected fossils from strata throughout England, Smith began to see that the fossils told a different story from the rocks. Particularly in the younger strata, the rocks were often so similar that he had trouble distinguishing the strata, but he never had trouble telling the fossils apart. While rock between two consistent strata might in one place be shale and in another sandstone, the fossils in that shale or sandstone were always the same. Some fossils
endured
through so many millions of years that they appear in many strata, but others occur only in a few strata, and a few species had their births and extinctions within one particular stratum. Fossils are thus identifying markers for particular periods in Earth’s history. [br] According to paragraph 4, it was difficult for Smith to distinguish rock strata because
选项
A、the rocks from different strata closely resembled each other
B、he was often unable to find fossils in the younger rock strata
C、their similarity to each other made it difficult for him to distinguish one rock type from another
D、the type of rock between two consistent strata was always the same
答案
A
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3329996.html
相关试题推荐
Politicaldominancebelongedtothenorth.Germany,France,andEnglandhad
Politicaldominancebelongedtothenorth.Germany,France,andEnglandhad
NotonlycouldSmithidentifyrockstratabythefossilstheycontained,he
AshecollectedfossilsfromstratathroughoutEngland,Smithbegantoseet
NavigationActsofColonialAmericaP1:Throughoutthecolonialperiod,afterth
NavigationActsofColonialAmericaP1:Throughoutthecolonialperiod,afterth
NavigationActsofColonialAmericaP1:Throughoutthecolonialperiod,afterth
NavigationActsofColonialAmericaP1:Throughoutthecolonialperiod,afterth
NavigationActsofColonialAmericaP1:Throughoutthecolonialperiod,afterth
NavigationActsofColonialAmericaP1:Throughoutthecolonialperiod,afterth
随机试题
WhohasvisitedSudanlastweek?[br][originaltext]Sudaneseoppositionlead
Whatproportionoftheworld’selectricitysupplyisprovidedbyhydroelectricp
HowtoSurviveaLayoffYou’velostyourjob,butit
进行低温热水地面辐射供暖系统加热盘管水力计算时,塑料管道的当量粗糙度为()。
DIC时微血管内的血栓称()A.附壁血栓 B.透明血栓 C.白色血栓
某石化公司炼油厂,有职工500人,男性459人,年龄25~55岁,平均37岁。工
男性,59岁,近1个月来出现低热、胸痛、咳嗽、咳痰、有时痰中混有血丝。体格检查:
以下关于“过程方法”的论述,不正确的是()。[2007年真题] A.将相互关
关于奥肯定律,下列说法正确的是( )。A.奥肯定律是由英国经济学家奥肯提出来的
()主要着眼于解决经济结构问题,促进产业结构调整和区域经济协调发展。A.货币政
最新回复
(
0
)