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The four seasons—spring, summer, autumn, and winter—form a continuous cycle that dictates the rhythm of life on Earth. This annual progression is not merely a change in the weather; it is a profound transformation of the landscape, affecting everything from the migration of birds to the growth of the food we eat.
Meteorological seasons — fixed calendar blocks
The astronomical definition is likely the one you learned in school. It is based on the Earth’s 23.5-degree axial tilt and its 365-day journey around the sun. Seasons change when the Earth reaches four key points in its orbit: the two and the two equinoxes .
