Question

the axis is tilted of an angle of 231/2 degres from the line of perpendicular the plane to the plane of orbit.what would happen if the aaxis of the earth was not tilted

Answer 1

Half of the earth is illuminated, but the circle of illumination does not pass through the north and south poles, as would be the case if the earth's axis were not tilted. Instead, the sun's rays pass over the North Pole and in fact go "over the top" to a latitude 23 ½ degrees south of the NP.

Answer 2

There will be equal days and night whole year......