Charged particles sometimes leak out of the Van Allen radiation belts and enter Earth's atmosphere, where they collide with atoms, especially above the polar regions, where the magnetic field moves down into the denser parts of the atmosphere. One result of this is .

Explanation:

In this phenomenon , the charged particles moves into the earth's atmosphere with very high velocity . By which ionization of air takes place . By which light particles of different colors are seen in the sky .

These colors just gives the scene of fireworks and this phenomenon is called

" Aurora Boreals " or " Northern lights "

answer: decibel

explanation:

electromagnetic shielding is the practice of reducing the electromagnetic field in a space by blocking the field with barriers made of conductive or magnetic materials. shielding is typically applied to enclosures to isolate electrical devices from their surroundings, and to cables to isolate wires from the environment through which the cable runs. electromagnetic shielding that blocks radio frequency electromagnetic radiation is also known as rf shielding.

the shielding can reduce the coupling of radio waves, electromagnetic fields and electrostatic fields. a conductive enclosure used to block electrostatic fields is also known as a faraday cage. the amount of reduction depends very much upon the material used, its thickness, the size of the shielded volume and the frequency of the fields of interest and the size, shape and orientation of apertures in a shield to an incident electromagnetic

from wikipedia