Answer:
The tilt of Earth’s rotation axis refers to the angle at which the Earth’s axis is tilted in relation to its orbit around the sun. This tilt is approximately 23.5 degrees. This tilt is what causes the changing of seasons and variations in sun angles and daylight length throughout the year.
As the Earth orbits the sun, different parts of the planet receive varying amounts of sunlight, depending on the tilt of its axis. When one hemisphere of the Earth is tilted towards the sun, it experiences summer, with longer days and higher sun angles. Conversely, when that hemisphere is tilted away from the sun, it experiences winter, with shorter days and lower sun angles.
The tilt of the Earth’s rotation axis also influences the length of daylight. During the summer solstice, which occurs around June 21st in the Northern Hemisphere and around December 21st in the Southern Hemisphere, the hemisphere tilted towards the sun experiences its longest day of the year, with the most daylight hours. Conversely, during the winter solstice, the hemisphere tilted away from the sun experiences its shortest day of the year, with the fewest daylight hours.
Overall, the tilt of the Earth’s rotation axis is responsible for the variations in sun angles and daylight length throughout the year, contributing to the distinct seasons experienced on Earth.