Why are sunrises and sunsets cyclic?

I am doing a project for trig on cyclic things such as sunrises and sunsets. One of the questions asked why the sunrises and sunsets are cyclic and it would be great if u guys knew! Help!!!! thanks



The earth is rotating around an axis a a constant duration, but since this axis is tilted and rotating around the sun, then the depending on where the earths orbit is around the sun, and the relation of the earth's tilt in relation to the sun (ie is it winter or summer) will regulate the what time the sun comes up and goes down every day in the calender.





If that is too hard to understand, I would get a farmers almanac that tells the times for sunrise and sunset for every day of the year. The phases of the moon is also cyclic as well.




because the earth is turning at a steady rate