Question

(iii) Why are glass jars and bottles dried well in the sun before filling them with pickles? (iv) What do you mean by preservation of food?​

Answer 1

Answer:

(iii) = Because it gets absorbed in day with the hot sun and it is transparent too it gets heated when kept outside on sunlight.

(iv) = preservation of food is the main purpose for keeping it fresh all day or it could be kept throughout whole week.

eg: Refrigerators, freezers, air-tight containers etc.