Question

. How does solstice help in identifying seasons on the Earth?​

Answer 1

The solstices define the seasons because they are unvarying and easy to detect. Temperatures vary year by year and are harder to measure. The seasons are determined by the position of the sun on a given date. Autumnal Equinox / Sept 21- Sun crossing the equator toward the Southern Hemisphere.

Answer 2

The Solstices (Summer & Winter)

The summer solstice occurs at the moment the earth's tilt toward from the sun is at a maximum. Therefore, on the day of the summer solstice, the sun appears at its highest elevation with a noontime position that changes very little for several days before and after the summer solstice. The summer solstice occurs when the sun is directly over the Tropic of Cancer, which is located at 23.5° latitude North, and runs through Mexico, the Bahamas, Egypt, Saudi Arabia, India, and southern China. For every place north of the Tropic of Cancer, the sun is at its highest point in the sky and this is the longest day of the year.

The winter solstice marks the shortest day and longest night of the year. In the Northern Hemisphere, it occurs when the sun is directly over the Tropic of Capricorn, which is located at 23.5° south of the equator and runs through Australia, Chile, southern Brazil, and northern South Africa.