GEOLOGY

Detailed explanation-1: -Each atom has its own magnetic field, and if a group of atoms can align their magnetic fields, this group or cluster of atoms is called a magnetic domain.

Detailed explanation-2: -Groups of atoms with aligned magnetic poles are called magnetic domains. Each domain contains an enormous number of atoms, yet the domains are too small to be seen with the unaided eye.

Detailed explanation-3: -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-4: -A magnetic domain is region in which the magnetic fields of atoms are grouped together and aligned.

Detailed explanation-5: -However, when an external magnetic field is present, the domains will rotate and align with the external magnetic field. 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.