Rotation!! Earth spins around (rotates) and whatever side is facing the sun, that side is experiencing daytime.
Revolution around the sun causes seasons, and tilt, I forgot what that causes. And radiation has nothing to do with anything. (I'm assuming that this is a multiple choice question, so I'm explaining the other answers which I've seen pop up). But that's not as important: just know that rotation causes day and night!
daylight and darkness is caused by a planets rotation
Day and night
rotating clock-wise (night and day)
True
Revolution would be a whole year but day and night are caused by rotation on its axis. Hope this helped =)
Spin, the spin makes one side of the world face the Sun and the other stars
Day and night
There is no point on the earths surface that experiences night for 24 hours every day.
the earths rotation
rotation
rotation
equinox
the seasons are caused from earths revolution(1 circle around the sun) while day and night occur from earths rotation (earth spinning on its axis)
Because it tilts on its axis
Just a guess but maybe day and night
The repeating phenomena referred to as "day" and "night".
Because of the earths tilt of 22.5 degrees
day and night