You are presented with the quiz "What creates winter?" 

But you don't know the answer, so you turn to your teacher to ask for hints. He says that "when a hemisphere is tilted away from the sun , that hemisphere receives less direct sunlight" and "because of this tilt, the northern hemisphere receives less direct sunlight (creating winter) while the southern hemisphere receives more direct sunlight (creating summer)". 

So, what's the best answer to the question?


 

      a hemisphere is tilted away from the sun     