Question

Write T for true and F for false statements.

The formation of day and night is a periodic change.

• A. True
• B. False

Answer 1

The correct option is A True

Periodic change: Changes, which tend to occur at a regular interval of time, is known as Periodic change. For example, rotation of the earth, changes of seasons, phases of the moon, heart beating, and a pendulum swinging.

The formation of day and night is a periodic change because:

1. The occurrence of day and night is caused by the rotation of the earth about its axis around the sun.
2. A complete cycle of the earth about its own axis takes 24 hours, which is divided into regular intervals of day and night.
3. After a regular interval, the entire cycle repeats itself, causing the formation of day and night periodically.

Thus, the given statement is true, i.e., the formation of day and night is a periodic change.