What causes the day/night cycle of Earth?
Earth's spinning in space
The sun's rotation around Earth
The moon's rotation around Earth
Earth's orbit around the sun

Respuesta :

Earth's orbit around the sun

Explanation:

The definition of an orbit is a circular shape, the rotation of one full circle or a range of experience. The 365 days it takes the earth to get around the sun is an example of the time it takes for a complete orbit or full circle around.