GEOLOGY

Detailed explanation-1: -When all or most of the domains are aligned in the same direction, the whole object becomes magnetized in that direction and becomes a magnet. The process of using a magnetic field to magnetize another object is called induction.

Detailed explanation-2: -A magnetic domain is a region within a magnetic material in which the magnetization is in a uniform direction. This means that the individual magnetic moments of the atoms are aligned with one another and they point in the same direction.

Detailed explanation-3: -For a magnetic material, when majority of domains get aligned, the material is said to be: linear.

Detailed explanation-4: -The microscopic ordering of electron spins characteristic of ferromagnetic materials leads to the formation of regions of magnetic alignment called domains.