The Earth's core is mainly made up of ___. A. silicon and oxygen B. iron and nickel C. magnesium and iron 相关知识点: 试题来源: 解析 B。解析:地球的地核主要由铁和镍组成。硅和氧是地壳中含量较多的元素,镁和铁不是地核主要的组成成分。反馈...
The core of the Earth is mainly made up of ___. A. 办通办通iron and nickel办通办通 B. 响科委手厂增近里义九平回月号论看划许更满响科委手厂增近里义九平回月号论看划许更满oxygen and silicon响科委手厂增近里义九平回月号论看划许更满响科委手厂增近里义九平回月号论看划许更满 ...
The Earth's core is mainly composed of _. A. Iron and nickel B. Silicon and oxygen C. Aluminum and magnesium D. Calcium and potassium 相关知识点: 试题来源: 解析 A。解析:地球的核心主要由铁和镍组成。选项A正确。选项B中的硅和氧是地壳中较为常见的元素组成。选项C中的铝和镁不是地核的主...
It was mentioned in the passage that the Earth's core is mainly composed of ___. A. iron and nickel B. copper and zinc C. gold and silver D. wood and stone 相关知识点: 试题来源: 解析 A。文中提到地球的核心主要由铁和镍组成,A 选项正确。反馈 ...
The Earth's core is mainly composed of ___. A. Iron and nickel B. Silicon and oxygen C. Magnesium and aluminum D. Carbon and hydrogen 相关知识点: 试题来源: 解析 A。解析:地球的核心主要由铁和镍组成。选项A符合地球科学中关于地球核心组成成分的事实。选项B硅和氧是地壳中较为常见的元素组合。
The inner core of the Earth is mainly made of ___. A. iron and nickel B. rock and soil C. water and gas D. ice and snow 相关知识点: 试题来源: 解析 A。本题考查地球内部结构的知识。地球的内核主要由铁和镍组成,选项 B 岩石和土壤主要存在于地壳,选项 C 水和气体通常不在地球内核,选项...
The layer of the Earth that is mainly made up of hot, semi - liquid rock is the ___. A. crust B. mantle C. outer core D. inner core 相关知识点: 试题来源: 解析 B。解析:地幔主要由炎热的半液态岩石组成。地壳是固态的岩石层,A选项错误。外核是液态的铁镍层,C选项不符合题意。内核...
The inner core of the Earth is mainly composed of _. A. molten rock B. solid iron and nickel C. gas D. water 相关知识点: 试题来源: 解析 B。解析:地球的内核主要由固态的铁和镍组成。选项A,熔融的岩石主要存在于地幔中,而非内核;选项C,地球内核不是由气体组成的;选项D,水不可能是地球内核的...
The temperature of Earth's core is a parameter of critical importance to model the thermal structure of Earth. Since the core is mainly made of iron, with ... E Sola,D Alfè - 《Physical Review Letters》 被引量: 89发表: 2009年 The Nature of the Earth's Core The properties of the ...
A. of the different chemical compositions B. of the different temperatures C. of the different seismic wave reflection D. of the different geographical locations 相关知识点: 试题来源: 解析 A。解析:地核分为内核和外核两部分主要是因为化学成分不同。选项B温度不同不是地核分为两部分的主要原因。选项...