相关知识点: 试题来源: 解析 C。解析:The main function of the earth's magnetic field is to protect the earth from solar winds. The magnetic field does not make the earth look beautiful, attract things to the earth or make the earth spin.反馈 收藏 ...
The earth has a magnetic field. What does the magnetic field do? A. Makes the earth spin B. Attracts iron and steel C. Makes the sun shine D. Helps plants grow 相关知识点: 试题来源: 解析 B。本题考查对地球磁场作用的了解,地球磁场能吸引铁和钢。A 选项地球自转不是磁场的作用;C 选项...
Fisher, Arthur
A. A protective magnetic field is formed at the same time. B. It is trapped in magnetic belts around the Earth. C. It destroys the protective magnetic field surrounding the Earth. D. It breaks magnetic field lines and does severe damage to the ??? E. t. The same magnetic field that...
Doomsday, is the real doomsday for stubborn people who refuse to change and have rigid thinking! But it is the beginning for Wenmang's continuous transcendence and self-renewal! This beginning,In fact, taking the end of mankind as the boundary. Before the end of mankind,Is known.After the...
The Earth's magnetic field is constantly changing, and the way which it changes also changes. When describing the magnetic field of the Earth we must specify both the direction and the intensity of the field. Since both of these change, and change differently in different places, it is not...
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This creates a toroidal, or doughnut-shaped field, as the direction of the field propagates outward from the north pole and enters through the south pole. Earth itself is a giant magnet. The planet gets its magnetic field from circulating electric current within the molten metallic core, ...
Earth Contains oxygen and nitrogen, with a climate that supports life. Earth's atmosphere protects and sustains life. 4 Jupiter Has a very strong magnetic field. Jupiter's magnetic field is the largest planetary magnetic field in the solar system. 4 Earth Has a solid surface with water, conti...
When each of us is first born into this world, it might feel like the world was made for humanity. For the past few generations — now encompassing every living human being — there have been billions of us, spread out across every continent, with sprawling cities, towns, villages, and ...