What is the proof of earth's magnetism?

What is the cause of earth's magnetism?

What is the strength of earth's magnetic field at the surface of earth?

What is probable cause of earth's magnetism?

What is the probable cause of earth magnetism?

The horizontal component of earths's magnetic field at a place is 0.3 xx 10^-4T . If the angle of dip is 60^@ , what is the total earth's magnetic field?

Write a note on Earth's magnetism.

What are the causes for earth's magnetic field according to Gover ?