A. cooler than the outer core B. hotter than the outer core C. at the same temperature as the outer core D. sometimes hotter and sometimes cooler than the outer core 相关知识点: 试题来源: 解析 A。解析:地球的内核比外核温度低。虽然内核温度仍然很高,但外核由于液态物质的对流等原因,温度更...
The inner core of the Earth is _. A. Cooler than the outer core B. At the same temperature as the outer core C. Warmer than the outer core D. Has no temperature difference with the mantle 相关知识点: 试题来源: 解析 C。解析:地球的内核比外核温度更高。随着深度增加,地球内部温度升高,...
百度试题 结果1 题目The inner core of the Earth is ___. A. liquid B. gas C. solid 相关知识点: 试题来源: 解析 C。解析:地球的内核是固态的。地球的外核是液态,地核不是气态。反馈 收藏
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...
BEIJING, Feb. 10 (Xinhua) -- Chinese scientists revealed that the inner core of the Earth is not a normal solid state but a superionic state, said the Chinese Academy of Sciences Thursday. The superionic state, an intermediate state between solid and liquid, is composed of solid iron and ...
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 days when the Earth's inner core (IC) was viewed as a homogeneous solid sphere surrounded by the liquid outer core (OC) are now behind us. Due to a limited number of data sampling the IC and a lack of experimentally controlled conditions in the deep Earth studies, it has been ...
(1971). Solidity of the inner core of the Earth inferred from normal mode observations. Nature (Lond.), 234, 465–466.Dziewonski, A., Gilbert, F., 1971. Solidity of the Inner Core of the Earth Inferred from Normal Mode Observations. Na- ture, 234: 465-466...
The time dependence of the orientation of Earth's inner core relative to the mantle was determined using a recently discovered 10-degree tilt in the axis of symmetry of the inner core's seismic-velocity anisotropy. Two methods of analyzing travel-timevariations for rays traversing the inner core...
Earth’s Inner Core [/caption] Deep beneath the Earth lies the core. This is a ball of solid metal surrounded by liquid metal. The solid part is the innercore of Earth, and the liquid part is known as the Earth’s outer core. ...