Rainfall increases. Sunlight is reduced. Wind speed increases. Animal migration is stopped.
I gave my students this multiple choice question: When trees develop leaves in the spring, 10 changes occur on the forest floor. Why does the development of leaves cause changes on the forest floor?

Only one answer is correct among these 4 choices:
- Rainfall increases.
- Sunlight is reduced.
- Wind speed increases.
- Animal migration is stopped.

Could you tell me which one is correct?

Sunlight is reduced.