EARTH SCIENCE
MAGNETISM
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
glowing region in the atmosphere caused by charged particles.
|
|
|
stream of charged particles flowing from the sun.
|
|
|
doughnut-shaped region 25, 000 kilometers above Earth’s surface.
|
|
|
region of Earth’s magnetic field shaped by the solar wind.
|
Detailed explanation-1: -The magnetosphere shields our home planet from harmful solar and cosmic particle radiation, but it can change shape in response to incoming space weather from the Sun. Earth’s internal magnetism creates a region around the planet known as the magnetosphere.
Detailed explanation-2: -The magnetosphere is the region of space surrounding Earth where the dominant magnetic field is the magnetic field of Earth, rather than the magnetic field of interplanetary space. The magnetosphere is formed by the interaction of the solar wind with Earth’s magnetic field.
Detailed explanation-3: -The shape of the Earth’s magnetosphere is the direct result of being blasted by solar wind. The solar wind compresses its sunward side to a distance of only 6 to 10 times the radius of the Earth. A supersonic shock wave is created sunward of Earth called the Bow Shock.
Detailed explanation-4: -The magnetosphere is not actually a sphere; it is shaped more like a teardrop, with a long “tail” extending away from the Sun. Although Earth’s magnetic field is roughly a dipole (like the field of a bar magnet) to a first approximation, it has a much more complex shape than a simple dipole field.