What are the characteristics of the four seasons of the year?

Hot summer, cold winter, harvest autumn, spring with a hundred flowers, each season has different characteristics.

All the year round, namely, spring, summer, autumn and winter, each season lasts for 3 months. Not only the climate in different parts of the earth is very different, but also the climate in different seasons in the same area is different.

All the year round, namely, spring, summer, autumn and winter, each season lasts for 3 months. In spring, the temperature warms up and everything recovers; In summer, the weather is hot and the fruit is ripe; In autumn, the temperature turns cool and the crops mature; In winter, the weather is cold and sometimes it snows.

Refers to the four alternate seasons in a year, namely, spring, summer, autumn and winter. Astronomically speaking, the division of the four seasons is determined by the orbital position of the earth around the sun.

When the earth is in different positions in the orbit of revolution at different times of the year, different places on the earth receive different sunlight and different heat from the sun, which leads to seasonal changes and differences between cold and hot. The four seasons on the earth are not only periodic changes in temperature, but also periodic changes in the length of day and night and the height of the sun. It affects or determines the movement rhythm of many things in the earth's environment, especially the adaptation of creatures.

The four seasons on the earth are first manifested as an astronomical phenomenon, which is not only the periodic change of temperature, but also the periodic change of the length of day and night and the height of the sun. Of course, the change of the length of day and night and the height of the sun at noon determines the change of temperature. The gradual changes of the four seasons are not uniform all over the world. It is summer in the northern hemisphere and winter in the southern hemisphere. The northern hemisphere changes from warm to cold, and the southern hemisphere changes from cold to hot. The length of day and night and the height of the sun change periodically in different seasons.

The earth's orbit around the sun is elliptical and has an angle with the plane of its rotation. When the earth is in different positions in its orbit at different times of the year, different places on the earth receive different sunlight and different heat from the sun, so there are seasonal changes and differences between cold and hot.

In climate, the four seasons are distinguished by temperature. In the northern hemisphere, generally speaking, March-May is spring, June-August is summer, September-165438+1October is autumn, and12-February is winter. In the southern hemisphere, the time of each season is just the opposite of that in the northern hemisphere. It is summer in the southern hemisphere and winter in the northern hemisphere; It is winter in the southern hemisphere and summer in the northern hemisphere. There is no obvious boundary between seasons, and the change of seasons is gradual.