The outer core is the layer of Earth creates a magnetic field and shields us from the Sun's destructive solar wind.
It is called a magnetic field to a space in which magnetic phenomena take place due to the influence of a body with properties of electric charges.
The earth's magnetic field is mainly produced by the electric currents that occur in the outer core, liquid in nature, which is composed of highly conductive cast iron.
As the center of the Earth cools, part of the iron contained in the fluid outer core solidifies and becomes part of the inner core.
The outer core changes its chemical composition and becomes less dense, generating convective currents.
This process, together with the Coriolis effect (product of the Earth's rotation) generates strong helical convection currents that align with the axis of rotation.
The Earth is mostly protected from the solar wind, a stream of energetic charged particles emanating from the Sun, by its magnetic field, which deflects most of the charged particles.
These particles would destroy the ozone layer, which protects the Earth from harmful ultraviolet rays.
Therefore, we can conclude that the outer core is the layer of Earth creates a magnetic field and shields us from the Sun's destructive solar wind.
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