Question

example of desirable and undesirable change

Answer 1

cooking of food is desirable change whereas rottening of fruit is an undesirable change

Answer 2

Desirable changes : the changes which are bought by mankind or nature which are use ful are called desirable changes.

Examples : culding of milk , formation of manure from dried leaves or cow dung , planting etc..

Undesirable changed : The changes which are bought by mankind or nature which are harmful to us are called undesirable changed.

Examplrs : rusting of iron articles , breaking of glass tumbler , pollution etc...



Hope you understood!!