Question

Rotation of the earth on its axis, motion of the hands of a clock and change of seasons are example of

• A. Periodic change
• B. Fast changes
• C. Chemical changes
• D. Non periodic changes

Answer 1

The correct option is A

Periodic change

Explanation for the correct option

Option A

Periodic changes are changes that occur periodically at regular intervals of time.

Explanation for the incorrect options

Option B

The changes that occur within a short time frame are called fast change

Example

• Ripening of fruits
• Growing of trees

Option C

Chemical changes occur when a substance combines with another to form a new substance.

Example

• Boling an egg
• Baking a cake

Option D

Non-periodic changes are the changes that do not repeat themselves after a fixed interval of time.

Example

• Volcanic eruption
• tsunami