The earth's surface is like its skin. Beneath this surface, or crust, there are several more layers of the planet. The hottest area, the earth's solid inner core is 10 percent sulphur. The rest is iron and nickel. The inner core is 800 miles thick. The outer core contains molten, v...
4. What is a meteor that reaches the earth surface is called 相关知识点: 试题来源: 解析 meteorite 题目问的是“到达地球表面的流星被称为什么”。根据天文学术语,流星体(meteoroid)进入地球大气层燃烧时称为流星(meteor),若未完全烧毁并落到地面,残余部分称为陨石(meteorite)。因此正确答案为“meteorite”。
( )30.- What is the ___?-It is the surface of the Earth, not covered by water. A. land B. sea C. sky 相关知识点: 试题来源: 解析 A核心短语/词汇:surface:表面翻译:---土地是什么呢?---它是地球的表面,没有被水覆盖的部分。解析:A.土地;B.海;C.天空;根据题意可知,答案为A. ...
atmosphere effectIt is frequently stated in textbooks and scholarly articles that the surface temperature of Earth is 33°C warmer than it would be without the atmosphere and that this difference is due to the greenhouse effect. This Forum shows that the atmosphere effect leads to warming of ...
Earth's interior dynamics support life in different ways. The magnetosphere generated by the core is one way. The magnetosphere directs harmful solar radiation away from the planet's surface and prevents the solar wind from stripping away the atmosphere. ...
This branch of science includes research into what the globe might have looked like in the past, the way it might appear in the future and how it fits into the universe as a whole, which facilitates comparisons with other planets like Venus and Mars. Earth science is inextricably connected...
DMany of us have wondered what the Earth looks likebelow the surface. Writers and scientists have too.French novelist Jules Verne once wrote the masterpieceJourney to the Center of the Earth. In the novel,explorers go to the Earth's center and discover amazingwonders.But in real life, human...
What would it be like to take a walk on the surface of Mars? If you could design the tallest building in the world, what would it look like? Do you dream of being the next J.K.Rowling? This summer, you can experience all of these things, and more. All you need is an Internet...
Textbooks like to say the Arctic is an ocean surrounded by continents, while the Antarctic is a continent surrounded by an ocean. Here's something you might not realize about the arrangement. All that seawater under the North Pole moderates the climate to some extent. Yet the South Pole doesn...
In the 1960s, humans set out to discover what the red planet has to teach us. Now, NASA is hoping to land the first humans on Mars by the 2030s.