tilt of the Earth's axis Earth changing its distance from the Sun changing patterns in wind and ocean currents cycles in the amount of energy released by the Sun
I gave my students this multiple choice question: What is the major cause of seasonal changes?

Only one answer is correct among these 4 choices:
- tilt of the Earth's axis
- Earth changing its distance from the Sun
- changing patterns in wind and ocean currents
- cycles in the amount of energy released by the Sun

Could you tell me which one is correct?

tilt of the Earth's axis