Answer:
The origin of the magnetic field is still a question that has not been fully resolved, but many geophysicists believe it is generated as the rotation of the earth causes slow movements in the liquid outer core which consists predominantly of iron
Movement inside the core of the Earth is thought to create electrical currents that make the magnetic field of the Earth. Like a planet sized bar magnet, the Earth's magnetic field is oriented to give a magnetic north Pole and the magnetic South Pole. The Earth's magnetic field structures far into space for about 60,000 kilometers. All the members of the Solar System have magnetic fields.