Question

which changes are referred to as undesirable changes​

Answer 1

Hlo...dued...

Undesirable change:

Those changes which we do not want to take place are called undesirable changes. Examples: rusting of iron, souring of milk, rottening of fruits etc.

Hope it will help you...

Please mark me as brainlist..

Answer 2

Answer:

bla bla bla bla bla bla bla bla bla bla bla bla bla bla bla bla bla bla bla bla bla bla