Question

Which of the following is a desirable change? *
Souring of milk
Spoilage of food
Rusting of an Iron object
Ripening of fruit​

Answer 1

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Explanation:

Desirable changes are those that are beneficial[useful]. Milk changing into curd,a seed germinating and forming a new plant and bees changing nectar into honey are some examples of desirable change. Undesirable changes are those that are not.