Question

The earth has a magnetic field around it which is generated by

Answer 1

the movement of molten iron and nickel in the outer core of the Earth. This movement creates electric currents, which in turn generate a magnetic field. This magnetic field extends from the Earth's interior out into space, and helps protect the planet from the solar wind – a stream of charged particles emitted by the sun. The magnetic field also plays a crucial role in navigation, as it allows compass needles to align with the Earth's magnetic field lines and point towards the magnetic north pole.