Question

which of the following best explains how earths motion causes differences in day and night?
night is caused by the earth rotating on its axis, with one hemisphere facing away from the sun.
night is caused by the earth revolving around the sun, causing one side to be in shadow.
night is caused by the moon blocking sunlight from reaching earth.
night is caused by earths axial tilt, causing one hemisphere to be in darkness.

Explanation:

Earth rotates on its axis. As it rotates, one hemisphere faces the Sun (day) and the other faces away (night). Revolution around the Sun causes seasons, the Moon blocking sunlight is a solar - eclipse event, and axial tilt affects seasons and the intensity of sunlight in different regions, not day - night cycle.

Answer:

Night is caused by the Earth rotating on its axis, with one hemisphere facing away from the Sun.