首页
登录
职称英语
One reason researchers have long believed that Mars never enjoyed an extensi
One reason researchers have long believed that Mars never enjoyed an extensi
游客
2025-02-19
35
管理
问题
One reason researchers have long believed that Mars never enjoyed an extensive period of warm and wet climate is that much of the surface not covered by wind-borne dust appear to be composed of unweathered material.
If water flowed for an extended period, researchers reasoned, it should have altered and weathered the volcanic minerals, creating clays or other oxidized, hydrated phases (minerals that incorporate water molecules in their crystal structure).
It turns out, though, that the scientists were not looking closely enough. New high-resolution mapping data and close-up surface studies have revealed clays and other hydrated minerals in many regions. The clay deposits are scattered all over, in ancient volcanic surfaces and heavily cratered highland regions, some of which have apparently been exposed by erosion only recently. [br] According to the passage, scientists are able to discover weathered material on the Martian surface because they have benefited from which of the following?
选项
A、A new method to analyze volcanic craters created on the Martian surface.
B、An improved ability to detect hydrated materials on the Martian surface
C、A more sophisticated understanding of the effect of wind-borne dust on the Martian surface
D、A decision to look for water primarily in heavily cratered highland regions.
E、A better understanding of how erosion might affect clay deposits.
答案
B
解析
根据第二段,科学家之所以又开始认为火星有水,是受益于新的技术使他们找到了水存在的证据,即黏土和其他水合物,因此选项B正确。
转载请注明原文地址:https://tihaiku.com/zcyy/3964142.html
相关试题推荐
OnereasonresearchershavelongbelievedthatMarsneverenjoyedanextensi
EarlynaturalistsbelievedtwospeciesofbeaverlivedinNorthAmerica:dam
Recently,researchersinvestigatedtheforagingprofilesofbirdspeciesin
Recently,researchersinvestigatedtheforagingprofilesofbirdspeciesin
Recently,researchersinvestigatedtheforagingprofilesofbirdspeciesin
Readinghabits-Whataresomeofthereasonsthatpeopleread?-Whattypesof
Whydidyouchoosethisschool/college/university? There’reafewgoodreasons,
Whatdidyouenjoydoingasachild? WhenIwasachild,Ienjoyedhangingout
Whyaresomepeoplesokeenonfollowingfashions? Ithinkonereasonisthatt
Describeanindoorgameyouenjoyedplayinginyourchildhood.Youshouldsay:w
随机试题
[originaltext]Onceasocialtaboo,loveacrossthecolorlineisbecomingi
(2018年真题)关于非银行金融机构,下列表述错误的是()。A.消费金融公司指
共用题干 第三篇TwoPeople,TwoPathsYoumustb
Thechangeinthatvillagewasmiraculou
“十五”时期粮食产量最高的年份是哪一年?()A.2002年 B.20
空气中粒径小于10微米的颗粒物能通过呼吸进人人体肺部,特别是小于2.5微米的细粒
取得资质证书满2年后,可申请高一级别的城乡规划编制单位资质的是()。A.乙
招标投标活动中当事人承担的法律责任可分为()。A、行政法律责任B、民事法律责任
有关药品通用名称印制与标注的说法,错误的是A.字体颜色应当使用黑色或者白色,与相
FIDIC《施工合同条件》规定的“暂列金额”款项使用的特点是()A、工程师有权根
最新回复
(
0
)