What elements comprise the largest portion of the Earth's biosphere? What is the upper mantle made of? What are the properties of Earth's inner core? What is the mesosphere mantle made of? What is the density of the Earth's mantle?
D. It is mainly made of gas. 相关知识点: 试题来源: 解析 C。解析:软流圈(asthenosphere)是上地幔(upper mantle)的一部分,它不是完全固态和刚性的(A错误),它是一种半熔融、具有韧性的层,这里的物质可以缓慢流动。软流圈温度比较高(B错误),它是由岩石物质组成而不是气体(D错误),所以选C。
Is Earth's mantle part of the biosphere? What is the innermost layer of the earth? What layers of the Earth help create the magnetosphere? What are two layers of the earth make up the lithosphere? Earth's atmosphere consists of how many main layers?
Yet, our understanding of mantle convection remains enigmatic. Questions persist on a number of fundamental topics, ranging from the origin of large igneous provinces to whether the mantle is compositionally heterogeneous.Philip J. HeronEdward J. Garnero...
What's another name for the middle mantle? The lithosphere–asthenosphere boundary is usually referred to asthe LAB. The asthenosphere is almost solid, although some of its regions are molten (e.g., below mid-ocean ridges). The lower boundary of the asthenosphere within the mantle is not wel...
Your acid mantle needs to be at the proper pH. Why is it called pH? Without getting too high school chemistry about it, the p in pH stands for power and the H stands for hydrogen. Higher concentrations of specific hydrogen ions have a lower pH. That means more acidic. Fewer equals a...
Mercury's core is thought to be made of molten nickel-iron with a mantle of solid rock and a surface of loose rocks and dust. Information about Mercury's composition is based on data from the spacecraft Mariner 10, launched in 1973, and the probe MESSENGER, the mission for which ran fr...
The point is we were going and we were all excited. This was not the first movie I had seen, but it is the first movie I trulyrememberseeing. I remember the opening. The blackness of space. The gazillions of stars. The introduction of the saga drifting off into infinity. My father ...
The boundary between the mantle and the earth's crust or surface is called the Mohorovicic Discontinuity. People call it the Moho for short. When the earth experiences volcanic or tectonic activity, rocks from the mantle can spew through openings in rifts and volcanoes to change the face of th...
Human growth hormone, or HGH, GH, rHGH, or somatotropin is made in the body’s pituitary glands and is made up of 191 amino acid chains for the purpose of aiding the body in maturity and cellular renewal, creating tissues, bones, muscles, etc. As we age, HGH shifts to a role where...