Question

What are desirable and undesirable changes? Give examples.

Answer 1

The changes that we want to take place are desirable changes. For living beings such changes are beneficial.

Examples: Germination of seeds, ripening of fruits, change in season

The changes that we would not want to occur are non-desirable or undesirable changes.

Examples: Souring of milk, rusting of iron, rotting of fruits & vegetables, global warming