It is drier at night. It is cooler at night. There is less danger at night. There is less wind at night.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Why are many desert animals more active at night?
Possibilities:
- It is drier at night.
- It is cooler at night.
- There is less danger at night.
- There is less wind at night.

It is cooler at night.