* Earth's Tilt: The Earth's axis is tilted at approximately 23.5 degrees. This tilt is the primary reason for seasons. As the Earth orbits the Sun, different parts of the planet receive varying amounts of direct sunlight throughout the year.
* Summer Solstice: During the summer solstice in the Northern Hemisphere, the North Pole is tilted towards the Sun, receiving more direct sunlight and longer days. The Southern Hemisphere experiences winter.
* Winter Solstice: During the winter solstice in the Northern Hemisphere, the North Pole is tilted away from the Sun, receiving less direct sunlight and shorter days. The Southern Hemisphere experiences summer.
* Equinoxes: During the equinoxes, the Sun's rays hit the Earth directly at the equator, resulting in roughly equal day and night lengths across the globe.
While the Earth's orbit is slightly elliptical, the distance variation from the Sun is minimal and does not significantly impact the amount of solar radiation received. The Earth is actually closest to the Sun in January (perihelion) and furthest in July (aphelion).
In conclusion, the Earth's tilt, not the distance from the Sun, is the dominant factor determining the seasons.
