What is the reason for the change of seasons on the globe?

The change of seasons is caused by the rotation of the Earth around the Sun and around its axis. This movement is performed at an inclination of 23.5 ° to the orbital plane. Because of this tilt to the Sun, it turns out to be either the Northern or the Southern hemisphere. When the part of the Earth, which is closer to the Sun, receives more heat, then summer begins in this part, and the rest at this time is farther from the Sun and winter reigns there. Six months later, the situation changes in the opposite direction. In the periods between winter and summer, both hemispheres are equally illuminated by the sun, but on one of them it is autumn, and on the other – spring.