How are Van Allen belts formed?
A) High-energy particles from the Sun get trapped in Earth's magnetic field.
B) Metals in Earth's core sink and rise, producing a circular movement of the metals.
C) Particles in solar wind travel along lines of Earth's magnetic field and collide with gas atoms.
D) Material from the surface of the Sun erupts and forms a loop due to the Sun's magnetic field.
Answers
A Van Allen radiation belt is a zone of energetic charged particles, most of which originate from the solar wind, that are captured by and held around a planet by that planet's magnetic field. ... Most of the particles that form the belts are thought to come from solar wind and other particles by cosmic rays.
A) A Van Allen radiation belt is a zone of energetic charged particles, most of which originate from the solar wind, that are captured by and held around a planet by that planet's magnetic field.
B) The power source for Earth's magnetic field may be magnesium that has been trapped in the core since our planet's violent birth, a new model suggests. Magnesium is the fourth most common element in the Earth's outer layers, but previously, scientists thought there was almost no magnesium in the core.
C) Charged particles are the "ammunition" of an aurora. The short answer to how the aurora happens is that energetic electrically charged particles (mostly electrons) accelerate along the magnetic field lines into the upper atmosphere, where they collide with gas atoms, causing the atoms to give off light.
The Van Allen belt is formed when High-energy particles from the Sun get trapped in Earth's magnetic field (option A).
- Solar wind and cosmic rays are the sources of the high-energy particles.
- The earth's magnetosphere traps these particles as they approach the planet.
- The magnetic field of the earth is formed by molten iron in its core.
- As a result, the high-energy particles create the Van Allen belt, which fluoresces when it collides with atoms in the upper atmosphere, giving it the name Van Allen radiation belt.