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...
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, if cut in half, would be shown as layers, like a cake. It is made up of four main layers: the crust, the mantle, the outer core, and the inner core. Ingredients in Earth's layers include solid silicate-based rocks and liquid metals....
The Internal Structure of the Earth:The Earth is made up of three main layers namely the crust, mantle, and core. The crust is the outer solid layer. The two inner layers are the mantle and core, respectively.Answer and Explanation: ...
And beneath that, is the Earth's core – over 6000km below the surface. Alice Right. But what's the Earth made of, Rob? Rob It's a good question. And it depends on which layer you're talking about! The crust and mantle are rock...
The Earth's core is mainly made up of. A. Iron and nickel B. Oxygen and nitrogen C. Silicon 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。氧和氮是大气中的主要成分,硅和铝更多存在于地壳等部分,碳和氢不是地球核心的主要组成成分。
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...
The EarthStation expansion allows us to remain competitive in an industry that increasingly demands such value added services and complements our existingcorebusinessoftransponder capacity leasing. asiasat.com asiasat.com 擴建後地面站讓我們可以在越益需求增值服務的衛星行業保持競爭力,並且補足我們現有轉發器...
Core of the earth is molten lava save earth to save human life.Ashwani Kumar
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...