Fact 1: When a hemisphere is tilted away from the sun , that hemisphere receives less direct sunlight.

Fact 2: For example, when the tilt increases, the Northern Hemisphere in winter receives less heat.

Given the two facts above, answer the question "What happens when we receive less sunlight?" with the following options: 
- Springtime
 - sweating
 - Heat
 - apoptosis
 - autumn
 - Winter
 - air cools
 - It's brighter


 

      Winter   