If ahemisphere is tilted away from the sun creating winter, then what creates winter?

Answer choices:
- Slowing the transfer of heat
 - ice expanding in rock openings
 - earth spinning on its axis
 - earth revolves around the sun
 - a hemisphere is tilted toward the sun
 - a hemisphere is tilted away from the sun
 - lack of moisture in the air
 - mechanical weathering

 

      a hemisphere is tilted away from the sun    