Which of the following is NOT an evidence of Earth's rotation?
Apparent movement of the stars in an east to west direction.
Sunrise in the east and sunset in the west.
Occurrence of night and day.
Change in seasons.
To determine which of the following is not an evidence of Earth's rotation, we need to understand the concept of Earth's rotation and its effects.
Firstly, Earth's rotation refers to the spinning motion of Earth on its axis. It takes approximately 24 hours for Earth to complete one rotation. This rotation is responsible for several observable phenomena.
1. Apparent movement of the stars in an east to west direction: As Earth rotates, it gives the illusion that the stars (except for the closest ones) are moving across the sky from east to west. This is due to the rotation of Earth and the fixed position of the stars.
2. Sunrise in the east and sunset in the west: Earth's rotation causes the Sun to appear to rise in the east and set in the west. As the Sun is stationary, it is Earth's rotation that gives the illusion of the Sun's movement across the sky.
3. Occurrence of night and day: Earth's rotation is responsible for the alternation between night and day. When a specific location on Earth faces away from the Sun, it experiences darkness or night. As Earth continues to rotate, that location eventually faces towards the Sun, resulting in daylight or daytime.
4. Change in seasons: While Earth's rotation does not directly cause the change in seasons, it does contribute to the variation in sunlight and temperature across different latitudes. The tilt of Earth's axis as it rotates around the Sun is the primary factor causing the change in seasons.
Based on the above explanations, the correct answer is "Change in seasons." Earth's rotation affects the length of day and night but does not directly cause the change in seasons. Rather, it is the combination of Earth's tilt and its revolution around the Sun that leads to the change in seasons.
Therefore, the occurrence of night and day, apparent movement of the stars in an east to west direction, and sunrise in the east and sunset in the west are all evidences of Earth's rotation.