Question

what are preservatives​

Answer 1

A preservative is a substance or a chemical that is added to products such as food products, beverages, pharmaceutical drugs, paints, biological samples, cosmetics, wood, and many other products to prevent decomposition by microbial growth or by undesirable chemical changes.

hope it helps

Answer 2

Answer:

preservatives means the ingredients which are used in food stuffs also used in other objects to increase the vitamin and iorn in body for (eg- class।।

preservatives are used in sauces)