首页
登录
职称英语
The binary planet hypothesis—that Earth and the Moon formed simultaneously by th
The binary planet hypothesis—that Earth and the Moon formed simultaneously by th
游客
2025-02-21
33
管理
问题
The binary planet hypothesis—that Earth and the Moon formed simultaneously by the accretion of smaller objects—does not explain why the Moons iron core is so small relative to the Moons total volume, compared with Earth’s core relative to Earths total volume. According to the giant-impact hypothesis, the Moon was created during a collision between Earth and a large object about the size of Mars. Computer simulations of this impact show that both of the objects would melt in the impact and the dense core of the impactor would fall as molten rock into the liquefied iron core of Earth. The ejected matter—mantle rock that had surrounded the cores of both objects—would be almost devoid of iron. This matter would become the Moon. [br] According to the passage, the binary planet hypothesis holds that
选项
A、Earth and the Moon were formed at the same time
B、smaller objects joined together to form Earth and the Moon
C、the Moons core is the same absolute size as Earths core
答案
A,B
解析
Choices A and B are correct. The question asks what the binary planet hypothesis holds.
Choice A is correct: According to the first sentence of the passage, the binary planet hypothesis holds that "Earth and the Moon formed simultaneously," that is, at the same time.
Choice B is correct: According to the first sentence of the passage, the binary planet hypothesis holds that Earth and the Moon formed "by the accretion of smaller objects," that is, by smaller objects joining together.
Choice C is incorrect: The passage does not mention the absolute sizes of Earths core and the Moons core; it only compares their sizes relative to the volumes of the two objects.
转载请注明原文地址:https://tihaiku.com/zcyy/3966320.html
相关试题推荐
Thebinaryplanethypothesis—thatEarthandtheMoonformedsimultaneouslybyth
Scientistsformerlybelievedthattherockyplanets—Earth,Mercury,Venus,andM
PopularinterestinmusicperformedbyfolksingerJeanRitchieactedasa(i)__
ThetwoastronomerswhosimultaneouslydiscoveredCometHale-Boppwere______:in
The(i)______ofthescientist’srebuttalofthehypothesiswasstartlingevenin
Balladsoftenpraisepopularfigureswhohaveperformedfeatsthatmanyperceive
Scientistsrequireobservabledata,not(i)______,tosupportahypothesis;soun
LumbeestorytellerBarbaraBraveboy-Locklearhasperformedincollegetheaters,
Thereissome____thefactthattheauthorofabookassensitiveandinformed
ThattheThirdBattalion’sfifty-percentcasualtyratetransformeditsassaulto
随机试题
WhatisJanegoingtostudythisterm?[br][originaltext]M:Areyougoingtos
HowtoBuildaStrongTeamSpirit1.ThreeprinciplestobuildingateamTea
ItiscommonlybelievedintheUnitedStatesthatschooliswherepeoplego
(1)Theincreaseinglobaltrademeansthatinternationalcompaniescannotaf
柴油发电机燃油供给系统的检查维护内容不正确的是()。A.检查燃油箱盖上的通气孔
行政复议期间可以停止执行具体行政行为的情形()。A.被申请人认为需要停止执行的
某污水处理厂已建成投产5年,污水处理能力为10万立方米7日,建设投资为30000
下列肝炎病毒基因组归类于DNA病毒的是( )A.甲型肝炎 B.乙型肝炎 C
下图所示的中国画《根扎南国》的作者是() A.徐悲鸿 B.吴冠中 C.
吡喹酮属于A:抗阿米巴药 B:抗病毒药 C:抗疟药 D:抗吸虫药驱绦虫药
最新回复
(
0
)