Rainfall increases. Sunlight is reduced. Wind speed increases. Animal migration is stopped.
I am hesitating between 4 options to answer the following question, which option should I choose?
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?
Possibilities:
- Rainfall increases.
- Sunlight is reduced.
- Wind speed increases.
- Animal migration is stopped.

Sunlight is reduced.