GEOLOGY

Detailed explanation-1: -The crust of the Earth has some permanent magnetization, and the Earth’s core generates its own magnetic field, sustaining the main part of the field we measure at the surface. So we could say that the Earth is, therefore, a “magnet."

Detailed explanation-2: -Earth’s magnetic field is mostly caused by electric currents in the liquid outer core, which is composed of conductive, molten iron. Loops of currents in the constantly moving, liquid iron create magnetic fields. From afar, the Earth looks like a big magnet with a north and south pole like any other magnet.

Detailed explanation-3: -In the 1600s, William Gilbert demonstrated that Earth is basically a spherical magnet, with north and south poles and a magnetic field.

Detailed explanation-4: -Jupiter’s Magnetosphere Some 20, 000 times stronger than Earth’s magnetic field, Jupiter’s magnetic field creates a magnetosphere so large it begins to avert the solar wind almost 3 million kilometers before it reaches Jupiter.

Detailed explanation-5: -Earth is a giant magnet because it contains magnetic material in the form of molten rock. Earth’s magnetic field, or magnetosphere, is strongest around the planet’s North and South Poles.