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A. Earth gets hot and cold in different places.B. When the Earth is spinning(转).C. When the sun is shining.( )58. What can water be?A. Only liquid.B. Gas and steam.C. Ice, steam and liquid.( )59. What is a helpful use of fire?
A. Earth gets hot and cold in different placesB. When the Earth is spinning(转).C. When the sun is shining. 相关知识点: 试题来源: 解析 A 风是由地球表面温度差异造成的。太阳照射地球,使某些地方的空气变热,而其他地方的空气保持较冷。热空气上升,冷空气下沉,这种空气的流动就形成了风。因此...
Our Earth is composed of a number of different layers. At the center is our white-hot core, as scorchingly hot as the surface of the sun, while the farthest reaches of our atmosphere are the last bits of air particles that touch empty space.Answer and Explanation:...
Why Is It So Hot? If we were to take a journey through Earth’s outer crust, we’d plunge past layers of rock and dirt, through the Earth’s mantle and into its outer core. If we went far enough, we’d reach the center of Earth, the inner core. Earth’s core is the hottest ...
How Hot Is the Heart of the Earth? By finding the melting point of iron in a laser-heated diamond cell, researchers improve their accuracy in estimating the temperature of the earth's core. Weisburd,S. - 《Science News》 被引量: 0发表: 1987年 Some like hot: as the rest of the world...
87:6673 How hot is the heart of the Earth?: Weisburd, S., 1987. Sci. News, Washington, D.C., 131(16):p.245doi:10.1016/0198-0254(87)91136-8
so hot, the corona is less than a millionth as bright as the Sun. As you walk away from a bonfire, you feel less of its heat because you receive less energy due to the inverse square law. Why is the more distant corona so much hotter than parts of the Sun closer to its core?
When we are at home we should make full use of (充分利用) the food we have. If there is excess(过量的) food, we can share it with our friends and neighbors. It’s time for us to join hands to save food and cut waste!1. Why do supermarkets throw away lots of food? ___ 2...
aHow long our planet can support us is a hot issue nowadays. As a result, in order that we can make the earth a better place to live for the generations to come, the idea of low-carbon living is more and more popular in the world.[translate]...