What’s the answer to this earth science question?

4.Expands and cools

Explanation:

When the air going up the air expands and becomes cooler in the sky but when the air is going down it compresses and becomes warmer cause the heat is always down and when the air goes up it gets cooler until it comes back down again.

Hope I am right and this helps!

the principles and empirical processes of discovery and demonstration considered characteristic of or necessary for scientific investigation, generally involving the observation of phenomena, the formulation of a hypothesis concerning the phenomena, experimentation to test the hypothesis, and development of a conclusion that confirms, rejects, or modifies the hypothesis.