Ionic structure (non-molecular), that is, it consists of ions: positively or negatively charged particles into which atoms are converted.
Salt is extracted from rock salt layers and from brines in salt lakes. Salt is fished in settlements, for example, Sol-Iletsk, Solikamsk, Soligorsk, Usolye-Sibirskoye, lakes Baskunchak in the Astrakhan region and Elton in the Volgograd region.
In the food industry (seasoning, preservative), in medicine (saline).
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.