What are the primary factors that influence the Earth's axial tilt and seasons?

The Earth's axial tilt and seasons are primarily influenced by two factors: the Earth's axial tilt and its revolution around the Sun. The Earth's axial tilt is the angle between the Earth's rotational axis and a line perpendicular to the plane of the ecliptic. The plane of the ecliptic is the imaginary plane that represents the Earth's orbit around the Sun. The Earth's axial tilt is currently about 23.5 degrees.

As the Earth revolves around the Sun, the amount of sunlight that reaches different parts of the Earth changes, resulting in the four seasons: spring, summer, fall, and winter. When the Northern Hemisphere is tilted towards the Sun, it experiences summer, and when it is tilted away from the Sun, it experiences winter. The opposite is true for the Southern Hemisphere.

The Earth's axial tilt and its revolution around the Sun are influenced by a number of factors, including the gravitational pull of the Moon and other planets, as well as the shape of the Earth and its distance from the Sun. Changes in any of these factors can have a significant impact on the Earth's axial tilt and seasons over long periods of time.