Question

Tree example of desirable effect

Answer 1

Answer:

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

Examples:

Germination of seedsRipening of fruitsChange in season

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

Examples:

Souring of milkRusting of ironRotting of fruits & vegetablesGlobal warming