It doesn't The 'Ozone Layer' does, this is a layer of 03(subscript 3) which is above the troposphere and works by maintaining an equilibrium with its conversion to 02(subscript 2) and by deflecting ultra-violet radiation and filtering out short-wave radiation.
= An effect of the magnetic field is "Van Allen radiation belt" =
The earth's magnetic field is important in that it prevents the sun's solar radiation from killing life on earth by wiping out the earth's atmosphere and deflecting dangerous radiation.
The earth's magnetic field protects the surface from getting struck by solar radiation.
It's important because it protects us from the suns radiation.
From solar radiation and cosmic rays
It is Earths' "Magnetosphere".
The Most Energetic Cosmic Rays Are Dangerous Because They Are Ionising Radiation. Fortunately, On Earth We Have Two Very Effective Line Of Defence: The Earths Magnetic Field And Its Atmosphere! x
Its main 'function' is to block most of the ultra violet radiation from the sun. Without the magnetic field - the UV radiation would be far too high to allow life to survive here.
Earth's magnet field shields humans from dangerous radiation form the sun and protects the earth's atmosphere form the solar wind. Without the magnetic field, there would be no human life on earth.
Yes.
It is made by the movement of the earths core and magma field
The earths magnetic field results from deep in the earths core. Magnetic conduction from within the earths core is believed to be the cause of this.