The primary driver of seasons on Earth is its axial tilt, which is approximately 23.5 degrees. This tilt leads to the variation in sunlight exposure throughout the year as the Earth orbits the sun. During summer, one hemisphere receives more direct sunlight, while the opposite experiences winter. The seasonal cycle is further influenced by the Earth’s elliptical orbit, which affects the distance from the sun, though the axial tilt remains the predominant factor. This remarkable phenomenon explains the fluctuation of climate and daylight we experience across the seasons.