What's the difference in colors all year round?

In early spring, willow branches germinate, and then, it gives people a thick green color.

Fiery red is the color of summer.

In early summer, the sun gradually turned from mild to hot, and later, it gave the earth a burst of heat.

Gold is the color of autumn.

In early autumn, the fruit was golden. Later, it gave the fruit farmers an attractive fragrance.

Snow is the color of winter.

In early winter, snow seeds fall from the sky and slowly turn into snowflakes. Later, the snowflake presented Snow White to the world.

Extended data

How are the four seasons formed?

There is an included angle (23 26') between the earth's rotation axis and the earth's revolution plane around the sun (ecliptic plane). Therefore, when the earth revolves around the sun, the position of the direct sunlight on the earth will change from 23 26' south latitude to 23 26' north latitude, that is, the tropic of cancer.

When the sun shines directly, the heat and temperature on the earth's surface are high, which is summer; On the contrary, when the sun is tilted, the heat gained on the earth's surface is low, which is winter. When the sun shines directly into the northern hemisphere, it is summer in the northern hemisphere and winter in the southern hemisphere; On the contrary, when the sun shines directly into the southern hemisphere, it is summer in the southern hemisphere and winter in the northern hemisphere.

When the sun shines directly on the Tropic of Cancer, it is the winter solstice (around 65438+February 22nd) and the summer solstice (around June 22nd). When the sun shines directly at the equator, it is the vernal equinox (about March 2 1) and the autumnal equinox (about September 2 1).

Perennial reference link _ Baidu Encyclopedia