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 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 Earth's crust is made up of several large pieces called? A. Plates B. Layers C. Spheres D. Continents 相关知识点: 试题来源: 解析 A。地球的地壳由几个大的板块(Plates)组成。层(Layers)通常指地球内部的层次结构;球体(Spheres)和大陆(Continents)与地壳的组成部分描述不符。
The Earth's atmosphere is made up of ___. A. water B. rock C. gas D. iron 相关知识点: 试题来源: 解析 C。地球的大气层是由不同的气体组成,“The Earth's atmosphere is also very important. It is made up of different gases.”。
结果1 题目The outer core of the Earth is ___. A. solid B. made up of air C. liquid D. made up of rocks 相关知识点: 试题来源: 解析 C。解析:“The outer core is liquid and mainly composed of iron and nickel.”。 反馈 收藏 ...
Earth's atmosphere (大气) is made of the layers of air that is around Earth. Thanks to the O2 found in the atmosphere, humans and other animals can breathe.The atmosphere has four layers. The closest layer to Earth is the troposphere. The troposphere reaches from Earth to about 8 to 15...
百度试题 结果1 题目The earth"s surface is mostly__water.made from B.made of C.made up of D.made up 相关知识点: 试题来源: 解析 make up of 由...构成 由...组成 反馈 收藏
The earth is made up of several layers(地层). The top layer of the earth is called the earth'scrust. The crust is divided into sections which are called plates.When two plates push against each other, or when two plates rub against each other, anearthquake happens. An earthquake causes ...
The Earth is made up of three layers. In the centre is the core, which is as big as the Mars and has a high 1 of over 7,000˚C. 2 the core is a thick layer called the mantle, 3 lower part is solid rock, 4 portion is molten rock called the magma. Floating on top of th...
请你根据书中内容,判断 下1. The surface of Earth is made of rock and is always changing. 相关知识点: 试题来源: 解析 【答案】constantly【核心短语/词汇】constantly不断地【翻译】地球的表面是由岩石构成的,并且总是在变化。【解析】句意为:地球的表面是由岩石构成的,并且总是在变化。空前已经有be动词...