Salt has long been used as a food preservative primarily because of what effect it has on food?

Explanation

Salt has long been used as a food preservative primarily because it draws moisture out of food through a process related to osmosis, creating a drier environment that is much less hospitable for the bacteria and other microorganisms responsible for causing spoilage. This preservation method, used for foods like salted meats and fish for centuries, helped people store food safely for extended periods long before modern refrigeration became widely available. While still used today, particularly in curing certain traditional foods, salt-based preservation has been substantially supplemented by refrigeration and other modern food preservation techniques. Explore more Everyday Science MCQs on mcqstutor to keep practicing.