Why do we have different seasons?
Seasons are a result of the Earth's revolution around the Sun and its axial tilt. The Earth's axis is tilted at an angle of approximately 23.5 degrees relative to its orbit around the Sun. As the Earth orbits the Sun, this tilt causes different parts of the planet to receive different amounts of sunlight at different times of the year. This variation in sunlight is what causes the four seasons we experience: spring, summer, fall, and winter.
During the two equinoxes, which occur around March 20th and September 22nd, the Earth's axis is tilted neither towards nor away from the Sun, resulting in roughly equal amounts of daylight and darkness for all parts of the world. On the other hand, during the two solstices, which occur around June 21st and December 22nd, the Earth's axis is tilted towards or away from the Sun, resulting in longer days and shorter nights (summer solstice) or longer nights and shorter days (winter solstice), respectively.
The changing of seasons has significant impacts on the natural world, including changes in temperature, precipitation, and plant and animal behavior.
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