Earth's rotation on its axis the Sun's revolution around Earth Earth's revolution around the Sun the Sun's rotation on its axis
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: What causes day and night on Earth?
Possibilities:
- Earth's rotation on its axis
- the Sun's revolution around Earth
- Earth's revolution around the Sun
- the Sun's rotation on its axis

Earth's rotation on its axis