What is the primary cause of the day and night on earth?

Earth’s orbit around the sun Earth’s rotation on its axis Inclination of the earth’s axis and its rotation Inclination of the earth’s axis and its revolution

Earth’s rotation on its axis

The correct answer is Option (2) - Earth’s rotation on its axis The Earth orbits the sun once every 365 days and rotates about its axis once every 24 hours. Day and night are due to the Earth rotating on its axis, not its orbiting around the sun.