Write how changes of seasons take place on Earth.
The changes in seasons on Earth are caused by the tilt of the Earth’s axis and its revolution around the sun. The axis is tilted at an angle of approximately 23.5 degrees. During Northern Hemisphere summer, the North Pole is tilted towards the sun, resulting in longer days and shorter nights, and warmer temperatures. This marks the beginning of summer in the Northern Hemisphere and winter in the Southern Hemisphere. During the autumnal and vernal equinoxes, the Earth’s axis is not tilted towards or away from the Sun, resulting in equal lengths of day and night globally. During Northern Hemisphere winter, the North Pole has tilted away from the Sun, resulting in shorter days and longer nights, and colder temperatures. This marks the beginning of winter in the Northern Hemisphere and summer in the Southern Hemisphere. These changes have a significant impact on the weather patterns and ecosystems across the planet.