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...
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 ...
Fisher, Arthur
Far below the surface of the Earth lies the extremely hot liquid outer core of the planet. This liquid core rotates around the solid inner core and produces the magnetic field of the Earth.Answer and Explanation: The Earth's magnetic field creates the magnetosphere that protects the Earth from...
AsianScientist (Jun. 16, 2016)– Earth’s magnetic field shields us from deadly cosmic radiation. Without it, life as we know it could not exist. But how it first emerged and was then sustained throughout Earth’s history has remained a mystery to scientists. ...
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 makes...
Define uniform magnetic field. What is the magnetic field of a magnet? What is an example of the electromagnetic force? What generates electromagnetic radiation? What is the wormhole theory? Which theory of quantum gravity involves 10 dimensions?
In summary: There is no evidence that the Earth's magnetic field originates in the core rather than elsewhere.There is no evidence that the Earth's magnetic field originates in the core rather than elsewhere.The physical model is compelling, but does not explain how the magnetic field is ...
or very powerfulsolar flares. It's because these events can accelerate particles to extremely fast speeds. And when some of those particles hit theEarth's magnetic field, this generates what we see as brilliantauroras— however, those particles can also damage satellite equipment and even harm as...
As the solar wind approaches Earth, it’s deflected by Earth’s magnetic field and diverted north and south toward the magnetic poles. The interaction between the solar wind and the magnetosphere generates beams of electrons. These electrons collide with atoms and molecules within the ionosphere ...