Describe in brief the effects of the revolution of the Earth with the help of diagrams.
The revolution of the Earth around the Sun causes several effects, which can be demonstrated with the help of diagrams:
- Seasons: The Earth’s axial tilt of 23.5 degrees causes different parts of the Earth to be tilted towards or away from the Sun at different times of the year. This results in the four seasons of the year: spring, summer, autumn, and winter.
- Varying lengths of day and night: As the Earth revolves around the Sun, different parts of the Earth receive different amounts of sunlight, depending on the position of the Earth in its orbit. This causes the lengths of day and night to vary throughout the year.
- The apparent movement of the Sun: As the Earth rotates on its axis, the Sun appears to move across the sky, rising in the east and setting in the west.