Question

this causes day and night​

Answer 1

Answer:

The Sun and the rotation of the Earth cause the day/night cycle.

Answer 2

Answer:

The change between day and night is caused by the rotation of the Earth on its axis. If the Earth did not rotate as it does, the day/night cycle would be very different or possibly even nonexistent. The changing lengths of days and nights depends on where you are on Earth and the time of year. Also, daylight hours are affected by the tilt of the Earth's axis and its path around the sun.

Explanation: