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.
earths magnetic field is generated by the circulation of liquid metal.
Earth's magnetic field reverses over time; the changes show that seafloor has taken place over time.
Scientists believe that it is the movements in the liquid outer core that create the magnetic field. Earth's magnetic field affects the whole planet.
About 41,000 years ago.
Evidence that Earth's magnetic field changes can be found in the alignment of magnetic minerals in rocks on the ocean floor. As magma solidifies into new rock, the magnetic minerals within it align with the current magnetic field direction. By studying the alignment of these minerals in rocks of different ages along the ocean floor, scientists can track changes in the Earth's magnetic field over time.
One piece of evidence is the study of ancient rocks that show reversals in magnetic orientation. Another evidence comes from observations of the movement of the magnetic poles over time. Additionally, observations of magnetic anomalies in the Earth's crust provide further evidence of changes in the magnetic field.
The Earth's magnetic field changes over time because that is the way that God makes it.
Ancient pottery shows movement of the earth's magnetic field. Firing the pottery fixes the ambient magnetic field in the fired pottery.
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.
Evidence of paleomagnetism can be found in basalt that has cooled from lava. Other evidence is that any rock with magnetic minerals are presents, and sedimentary rocks where minerals form from ion bearing ground water.
because it has the hydro electric power to control the earths magnetic field
For one, the magnetic field changes continuously; this is not consistent with a permanent magnet.
It is Earths' "Magnetosphere".
earths magnetic field is generated by the circulation of liquid metal.