Point out the major causes of change of season.
The major causes of the change of seasons on Earth are:
- The tilt of the Earth’s axis: The Earth’s axis is tilted about 23.5 degrees relative to the plane of its orbit around the Sun. This means that as the Earth orbits the Sun, different parts of the Earth receive varying amounts of direct sunlight, causing the seasons to change.
- Revolution of the Earth: The Earth’s revolution around the Sun causes the amount of daylight and darkness to vary throughout the year, which also contributes to the change of seasons.
- The Earth’s orbit: The Earth’s orbit around the Sun is not a perfect circle, but rather an elliptical shape. This means that at certain points in its orbit, the Earth is closer to the Sun (perihelion) and at other points, it is farther away (aphelion).