the temperature of the air the temperature of the ocean the density of clouds in the sky the amount of rainfall on a rainy day
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: What is the best measure to use in determining the effect of solar energy on Earth's atmosphere?
Possibilities:
- the temperature of the air
- the temperature of the ocean
- the density of clouds in the sky
- the amount of rainfall on a rainy day

the temperature of the air