👉 The seasons' fluidity refers to the seamless transition and interconnectedness of the Earth's annual cycle through the four distinct seasons: spring, summer, autumn (or fall), and winter. This fluidity is driven by the planet's axial tilt and its orbit around the Sun, which causes varying amounts of sunlight and warmth to reach different parts of the globe throughout the year. As a result, temperatures fluctuate, daylight hours change, and ecosystems adapt continuously, blurring the rigid boundaries between seasons. What begins as one season often blends into another, with each transition marked by subtle shifts—like the gradual warmth of spring giving way to summer’s heat, or autumn’s coolness leading into winter’s chill—creating a dynamic, ever-changing rhythm that underscores the Earth's natural cycle.
