Question

what are periodic and non periodic change?​

Answer 1

Events that repeat themselves after a fixed period of time and whose occurence can be predicted are called periodic changes.

Example- rotation of earth, revolution of earth, day and night, seasons etc.

The events that do not repeat themselves after regular interval of time are called non periodic changes.

Example- natural disasters like earthquake, cyclones etc.

Answer 2

Answer:

Periodic changes. Non periodic changes. Events that repeat themselves after a fixed period of time and whose occurence can be predicted are called periodic changes. The events that do not repeat themselves after regular interval of time are called non periodic changes.

Explanation: