Earth's perfect tilt and spin: Earth's tilt of about 23.4 degrees causes the annual cycle of seasons, moderates temperatures, and allows for a wide range of climate zones.
Ukutsheka nokujikeleza komhlaba okumangalisayo: Ukutsheka komhlaba ngama-degree angaba ngu-23,4 kubangela ukushintsha kwezinkathi zonyaka minyaka yonke, kugcine amazinga okushisa esesilinganisweni futhi kwenze kube nesimo sezulu esishintshashintshayo.