Seasons change due to the tilt of the Earth's axis and its orbit around the Sun. The Earth's axis is tilted at an angle of about 23.5 degrees, causing different parts of the Earth to receive varying amounts of sunlight throughout the year. As the Earth orbits the Sun, the angle of sunlight hitting each hemisphere changes, creating the four seasons - spring, summer, autumn, and winter. This change in sunlight angle influences temperature, weather patterns, and the length of days and nights during each season.
