Earth’s rotation slows during the day. Earth’s rotation slows during the night. Earth’s rotation causes both day and night. Earth’s tilt on its axis causes both day and night.
I gave my students this multiple choice question: Which statement correctly describes why there are fewer than 24 hours of daylight in Alaska during each day in April?

Only one answer is correct among these 4 choices:
- Earth’s rotation slows during the day.
- Earth’s rotation slows during the night.
- Earth’s rotation causes both day and night.
- Earth’s tilt on its axis causes both day and night.

Could you tell me which one is correct?

Earth’s rotation causes both day and night.